sdk, del

18 files changed, 0 insertions, 2311 deletions

diff --git a/frontend-old/node_modules/websocket-driver/CHANGELOG.md b/frontend-old/node_modules/websocket-driver/CHANGELOG.md
deleted file mode 100644
index cb3945f..0000000
--- a/frontend-old/node_modules/websocket-driver/CHANGELOG.md
+++ /dev/null
@@ -1,142 +0,0 @@
-### 0.7.4 / 2020-05-22
-
-- Avoid crashing if `process.version` does not contain any digits
-- Emit `ping` and `pong` events from the `Server` driver
-- Require http-parser-js >=0.5.1 which fixes the bug we addressed in 0.7.3
-
-### 0.7.3 / 2019-06-13
-
-- Cap version of http-parser-js below 0.4.11, which introduced a bug that
-  prevents us from handling messages that are part of the same input buffer as
-  the handshake response if chunked encoding is specified
-
-### 0.7.2 / 2019-06-13
-
-(This version was pulled due to an error when publishing)
-
-### 0.7.1 / 2019-06-10
-
-- Catch any exceptions produced while generating a handshake response and send a
-  `400 Bad Request` response to the client
-- Pick the RFC-6455 protocol version if the request contains any of the headers
-  used by that version
-- Use the `Buffer.alloc()` and `Buffer.from()` functions instead of the unsafe
-  `Buffer()` constructor
-- Handle errors encountered while handling malformed draft-76 requests
-- Change license from MIT to Apache 2.0
-
-### 0.7.0 / 2017-09-11
-
-- Add `ping` and `pong` to the set of events users can listen to
-- Replace the bindings to Node's HTTP parser with `http-parser-js`
-
-### 0.6.5 / 2016-05-20
-
-- Don't mutate buffers passed in by the application when masking
-
-### 0.6.4 / 2016-01-07
-
-- If a number is given as input for a frame payload, send it as a string
-
-### 0.6.3 / 2015-11-06
-
-- Reject draft-76 handshakes if their Sec-WebSocket-Key headers are invalid
-- Throw a more helpful error if a client is created with an invalid URL
-
-### 0.6.2 / 2015-07-18
-
-- When the peer sends a close frame with no error code, emit 1000
-
-### 0.6.1 / 2015-07-13
-
-- Use the `buffer.{read,write}UInt{16,32}BE` methods for reading/writing numbers
-  to buffers rather than including duplicate logic for this
-
-### 0.6.0 / 2015-07-08
-
-- Allow the parser to recover cleanly if event listeners raise an error
-- Add a `pong` method for sending unsolicited pong frames
-
-### 0.5.4 / 2015-03-29
-
-- Don't emit extra close frames if we receive a close frame after we already
-  sent one
-- Fail the connection when the driver receives an invalid
-  `Sec-WebSocket-Extensions` header
-
-### 0.5.3 / 2015-02-22
-
-- Don't treat incoming data as WebSocket frames if a client driver is closed
-  before receiving the server handshake
-
-### 0.5.2 / 2015-02-19
-
-- Fix compatibility with the HTTP parser on io.js
-- Use `websocket-extensions` to make sure messages and close frames are kept in
-  order
-- Don't emit multiple `error` events
-
-### 0.5.1 / 2014-12-18
-
-- Don't allow drivers to be created with unrecognized options
-
-### 0.5.0 / 2014-12-13
-
-- Support protocol extensions via the websocket-extensions module
-
-### 0.4.0 / 2014-11-08
-
-- Support connection via HTTP proxies using `CONNECT`
-
-### 0.3.6 / 2014-10-04
-
-- It is now possible to call `close()` before `start()` and close the driver
-
-### 0.3.5 / 2014-07-06
-
-- Don't hold references to frame buffers after a message has been emitted
-- Make sure that `protocol` and `version` are exposed properly by the TCP driver
-
-### 0.3.4 / 2014-05-08
-
-- Don't hold memory-leaking references to I/O buffers after they have been
-  parsed
-
-### 0.3.3 / 2014-04-24
-
-- Correct the draft-76 status line reason phrase
-
-### 0.3.2 / 2013-12-29
-
-- Expand `maxLength` to cover sequences of continuation frames and
-  `draft-{75,76}`
-- Decrease default maximum frame buffer size to 64MB
-- Stop parsing when the protocol enters a failure mode, to save CPU cycles
-
-### 0.3.1 / 2013-12-03
-
-- Add a `maxLength` option to limit allowed frame size
-- Don't pre-allocate a message buffer until the whole frame has arrived
-- Fix compatibility with Node v0.11 `HTTPParser`
-
-### 0.3.0 / 2013-09-09
-
-- Support client URLs with Basic Auth credentials
-
-### 0.2.2 / 2013-07-05
-
-- No functional changes, just updates to package.json
-
-### 0.2.1 / 2013-05-17
-
-- Export the isSecureRequest() method since faye-websocket relies on it
-- Queue sent messages in the client's initial state
-
-### 0.2.0 / 2013-05-12
-
-- Add API for setting and reading headers
-- Add Driver.server() method for getting a driver for TCP servers
-
-### 0.1.0 / 2013-05-04
-
-- First stable release
diff --git a/frontend-old/node_modules/websocket-driver/LICENSE.md b/frontend-old/node_modules/websocket-driver/LICENSE.md
deleted file mode 100644
index 9475f06..0000000
--- a/frontend-old/node_modules/websocket-driver/LICENSE.md
+++ /dev/null
@@ -1,12 +0,0 @@
-Copyright 2010-2020 James Coglan
-
-Licensed under the Apache License, Version 2.0 (the "License"); you may not use
-this file except in compliance with the License. You may obtain a copy of the
-License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software distributed
-under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
-CONDITIONS OF ANY KIND, either express or implied. See the License for the
-specific language governing permissions and limitations under the License.
diff --git a/frontend-old/node_modules/websocket-driver/README.md b/frontend-old/node_modules/websocket-driver/README.md
deleted file mode 100644
index 95c33c4..0000000
--- a/frontend-old/node_modules/websocket-driver/README.md
+++ /dev/null
@@ -1,370 +0,0 @@
-# websocket-driver [![Build Status](https://travis-ci.org/faye/websocket-driver-node.svg)](https://travis-ci.org/faye/websocket-driver-node)
-
-This module provides a complete implementation of the WebSocket protocols that
-can be hooked up to any I/O stream. It aims to simplify things by decoupling the
-protocol details from the I/O layer, such that users only need to implement code
-to stream data in and out of it without needing to know anything about how the
-protocol actually works. Think of it as a complete WebSocket system with
-pluggable I/O.
-
-Due to this design, you get a lot of things for free. In particular, if you hook
-this module up to some I/O object, it will do all of this for you:
-
-- Select the correct server-side driver to talk to the client
-- Generate and send both server- and client-side handshakes
-- Recognize when the handshake phase completes and the WS protocol begins
-- Negotiate subprotocol selection based on `Sec-WebSocket-Protocol`
-- Negotiate and use extensions via the
-  [websocket-extensions](https://github.com/faye/websocket-extensions-node)
-  module
-- Buffer sent messages until the handshake process is finished
-- Deal with proxies that defer delivery of the draft-76 handshake body
-- Notify you when the socket is open and closed and when messages arrive
-- Recombine fragmented messages
-- Dispatch text, binary, ping, pong and close frames
-- Manage the socket-closing handshake process
-- Automatically reply to ping frames with a matching pong
-- Apply masking to messages sent by the client
-
-This library was originally extracted from the [Faye](http://faye.jcoglan.com)
-project but now aims to provide simple WebSocket support for any Node-based
-project.
-
-
-## Installation
-
-```
-$ npm install websocket-driver
-```
-
-
-## Usage
-
-This module provides protocol drivers that have the same interface on the server
-and on the client. A WebSocket driver is an object with two duplex streams
-attached; one for incoming/outgoing messages and one for managing the wire
-protocol over an I/O stream. The full API is described below.
-
-
-### Server-side with HTTP
-
-A Node webserver emits a special event for 'upgrade' requests, and this is where
-you should handle WebSockets. You first check whether the request is a
-WebSocket, and if so you can create a driver and attach the request's I/O stream
-to it.
-
-```js
-var http = require('http'),
-    websocket = require('websocket-driver');
-
-var server = http.createServer();
-
-server.on('upgrade', function(request, socket, body) {
-  if (!websocket.isWebSocket(request)) return;
-
-  var driver = websocket.http(request);
-
-  driver.io.write(body);
-  socket.pipe(driver.io).pipe(socket);
-
-  driver.messages.on('data', function(message) {
-    console.log('Got a message', message);
-  });
-
-  driver.start();
-});
-```
-
-Note the line `driver.io.write(body)` - you must pass the `body` buffer to the
-socket driver in order to make certain versions of the protocol work.
-
-
-### Server-side with TCP
-
-You can also handle WebSocket connections in a bare TCP server, if you're not
-using an HTTP server and don't want to implement HTTP parsing yourself.
-
-The driver will emit a `connect` event when a request is received, and at this
-point you can detect whether it's a WebSocket and handle it as such. Here's an
-example using the Node `net` module:
-
-```js
-var net = require('net'),
-    websocket = require('websocket-driver');
-
-var server = net.createServer(function(connection) {
-  var driver = websocket.server();
-
-  driver.on('connect', function() {
-    if (websocket.isWebSocket(driver)) {
-      driver.start();
-    } else {
-      // handle other HTTP requests
-    }
-  });
-
-  driver.on('close', function() { connection.end() });
-  connection.on('error', function() {});
-
-  connection.pipe(driver.io).pipe(connection);
-
-  driver.messages.pipe(driver.messages);
-});
-
-server.listen(4180);
-```
-
-In the `connect` event, the driver gains several properties to describe the
-request, similar to a Node request object, such as `method`, `url` and
-`headers`. However you should remember it's not a real request object; you
-cannot write data to it, it only tells you what request data we parsed from the
-input.
-
-If the request has a body, it will be in the `driver.body` buffer, but only as
-much of the body as has been piped into the driver when the `connect` event
-fires.
-
-
-### Client-side
-
-Similarly, to implement a WebSocket client you just need to make a driver by
-passing in a URL. After this you use the driver API as described below to
-process incoming data and send outgoing data.
-
-
-```js
-var net = require('net'),
-    websocket = require('websocket-driver');
-
-var driver = websocket.client('ws://www.example.com/socket'),
-    tcp = net.connect(80, 'www.example.com');
-
-tcp.pipe(driver.io).pipe(tcp);
-
-tcp.on('connect', function() {
-  driver.start();
-});
-
-driver.messages.on('data', function(message) {
-  console.log('Got a message', message);
-});
-```
-
-Client drivers have two additional properties for reading the HTTP data that was
-sent back by the server:
-
-- `driver.statusCode` - the integer value of the HTTP status code
-- `driver.headers` - an object containing the response headers
-
-
-### HTTP Proxies
-
-The client driver supports connections via HTTP proxies using the `CONNECT`
-method. Instead of sending the WebSocket handshake immediately, it will send a
-`CONNECT` request, wait for a `200` response, and then proceed as normal.
-
-To use this feature, call `driver.proxy(url)` where `url` is the origin of the
-proxy, including a username and password if required. This produces a duplex
-stream that you should pipe in and out of your TCP connection to the proxy
-server. When the proxy emits `connect`, you can then pipe `driver.io` to your
-TCP stream and call `driver.start()`.
-
-```js
-var net = require('net'),
-    websocket = require('websocket-driver');
-
-var driver = websocket.client('ws://www.example.com/socket'),
-    proxy  = driver.proxy('http://username:password@proxy.example.com'),
-    tcp    = net.connect(80, 'proxy.example.com');
-
-tcp.pipe(proxy).pipe(tcp, { end: false });
-
-tcp.on('connect', function() {
-  proxy.start();
-});
-
-proxy.on('connect', function() {
-  driver.io.pipe(tcp).pipe(driver.io);
-  driver.start();
-});
-
-driver.messages.on('data', function(message) {
-  console.log('Got a message', message);
-});
-```
-
-The proxy's `connect` event is also where you should perform a TLS handshake on
-your TCP stream, if you are connecting to a `wss:` endpoint.
-
-In the event that proxy connection fails, `proxy` will emit an `error`. You can
-inspect the proxy's response via `proxy.statusCode` and `proxy.headers`.
-
-```js
-proxy.on('error', function(error) {
-  console.error(error.message);
-  console.log(proxy.statusCode);
-  console.log(proxy.headers);
-});
-```
-
-Before calling `proxy.start()` you can set custom headers using
-`proxy.setHeader()`:
-
-```js
-proxy.setHeader('User-Agent', 'node');
-proxy.start();
-```
-
-
-### Driver API
-
-Drivers are created using one of the following methods:
-
-```js
-driver = websocket.http(request, options)
-driver = websocket.server(options)
-driver = websocket.client(url, options)
-```
-
-The `http` method returns a driver chosen using the headers from a Node HTTP
-request object. The `server` method returns a driver that will parse an HTTP
-request and then decide which driver to use for it using the `http` method. The
-`client` method always returns a driver for the RFC version of the protocol with
-masking enabled on outgoing frames.
-
-The `options` argument is optional, and is an object. It may contain the
-following fields:
-
-- `maxLength` - the maximum allowed size of incoming message frames, in bytes.
-  The default value is `2^26 - 1`, or 1 byte short of 64 MiB.
-- `protocols` - an array of strings representing acceptable subprotocols for use
-  over the socket. The driver will negotiate one of these to use via the
-  `Sec-WebSocket-Protocol` header if supported by the other peer.
-
-A driver has two duplex streams attached to it:
-
-- **`driver.io`** - this stream should be attached to an I/O socket like a TCP
-  stream. Pipe incoming TCP chunks to this stream for them to be parsed, and
-  pipe this stream back into TCP to send outgoing frames.
-- **`driver.messages`** - this stream emits messages received over the
-  WebSocket.  Writing to it sends messages to the other peer by emitting frames
-  via the `driver.io` stream.
-
-All drivers respond to the following API methods, but some of them are no-ops
-depending on whether the client supports the behaviour.
-
-Note that most of these methods are commands: if they produce data that should
-be sent over the socket, they will give this to you by emitting `data` events on
-the `driver.io` stream.
-
-#### `driver.on('open', function(event) {})`
-
-Adds a callback to execute when the socket becomes open.
-
-#### `driver.on('message', function(event) {})`
-
-Adds a callback to execute when a message is received. `event` will have a
-`data` attribute containing either a string in the case of a text message or a
-`Buffer` in the case of a binary message.
-
-You can also listen for messages using the `driver.messages.on('data')` event,
-which emits strings for text messages and buffers for binary messages.
-
-#### `driver.on('error', function(event) {})`
-
-Adds a callback to execute when a protocol error occurs due to the other peer
-sending an invalid byte sequence. `event` will have a `message` attribute
-describing the error.
-
-#### `driver.on('close', function(event) {})`
-
-Adds a callback to execute when the socket becomes closed. The `event` object
-has `code` and `reason` attributes.
-
-#### `driver.on('ping', function(event) {})`
-
-Adds a callback block to execute when a ping is received. You do not need to
-handle this by sending a pong frame yourself; the driver handles this for you.
-
-#### `driver.on('pong', function(event) {})`
-
-Adds a callback block to execute when a pong is received. If this was in
-response to a ping you sent, you can also handle this event via the
-`driver.ping(message, function() { ... })` callback.
-
-#### `driver.addExtension(extension)`
-
-Registers a protocol extension whose operation will be negotiated via the
-`Sec-WebSocket-Extensions` header. `extension` is any extension compatible with
-the [websocket-extensions](https://github.com/faye/websocket-extensions-node)
-framework.
-
-#### `driver.setHeader(name, value)`
-
-Sets a custom header to be sent as part of the handshake response, either from
-the server or from the client. Must be called before `start()`, since this is
-when the headers are serialized and sent.
-
-#### `driver.start()`
-
-Initiates the protocol by sending the handshake - either the response for a
-server-side driver or the request for a client-side one. This should be the
-first method you invoke.  Returns `true` if and only if a handshake was sent.
-
-#### `driver.parse(string)`
-
-Takes a string and parses it, potentially resulting in message events being
-emitted (see `on('message')` above) or in data being sent to `driver.io`.  You
-should send all data you receive via I/O to this method by piping a stream into
-`driver.io`.
-
-#### `driver.text(string)`
-
-Sends a text message over the socket. If the socket handshake is not yet
-complete, the message will be queued until it is. Returns `true` if the message
-was sent or queued, and `false` if the socket can no longer send messages.
-
-This method is equivalent to `driver.messages.write(string)`.
-
-#### `driver.binary(buffer)`
-
-Takes a `Buffer` and sends it as a binary message. Will queue and return `true`
-or `false` the same way as the `text` method. It will also return `false` if the
-driver does not support binary messages.
-
-This method is equivalent to `driver.messages.write(buffer)`.
-
-#### `driver.ping(string = '', function() {})`
-
-Sends a ping frame over the socket, queueing it if necessary. `string` and the
-callback are both optional. If a callback is given, it will be invoked when the
-socket receives a pong frame whose content matches `string`. Returns `false` if
-frames can no longer be sent, or if the driver does not support ping/pong.
-
-#### `driver.pong(string = '')`
-
-Sends a pong frame over the socket, queueing it if necessary. `string` is
-optional. Returns `false` if frames can no longer be sent, or if the driver does
-not support ping/pong.
-
-You don't need to call this when a ping frame is received; pings are replied to
-automatically by the driver. This method is for sending unsolicited pongs.
-
-#### `driver.close()`
-
-Initiates the closing handshake if the socket is still open. For drivers with no
-closing handshake, this will result in the immediate execution of the
-`on('close')` driver. For drivers with a closing handshake, this sends a closing
-frame and `emit('close')` will execute when a response is received or a protocol
-error occurs.
-
-#### `driver.version`
-
-Returns the WebSocket version in use as a string. Will either be `hixie-75`,
-`hixie-76` or `hybi-$version`.
-
-#### `driver.protocol`
-
-Returns a string containing the selected subprotocol, if any was agreed upon
-using the `Sec-WebSocket-Protocol` mechanism. This value becomes available after
-`emit('open')` has fired.
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver.js
deleted file mode 100644
index 3d701cc..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver.js
+++ /dev/null
@@ -1,43 +0,0 @@
-'use strict';
-
-// Protocol references:
-//
-// * http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-75
-// * http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76
-// * http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-17
-
-var Base   = require('./driver/base'),
-    Client = require('./driver/client'),
-    Server = require('./driver/server');
-
-var Driver = {
-  client: function(url, options) {
-    options = options || {};
-    if (options.masking === undefined) options.masking = true;
-    return new Client(url, options);
-  },
-
-  server: function(options) {
-    options = options || {};
-    if (options.requireMasking === undefined) options.requireMasking = true;
-    return new Server(options);
-  },
-
-  http: function() {
-    return Server.http.apply(Server, arguments);
-  },
-
-  isSecureRequest: function(request) {
-    return Server.isSecureRequest(request);
-  },
-
-  isWebSocket: function(request) {
-    return Base.isWebSocket(request);
-  },
-
-  validateOptions: function(options, validKeys) {
-    Base.validateOptions(options, validKeys);
-  }
-};
-
-module.exports = Driver;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/base.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/base.js
deleted file mode 100644
index f05af5f..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/base.js
+++ /dev/null
@@ -1,193 +0,0 @@
-'use strict';
-
-var Buffer  = require('safe-buffer').Buffer,
-    Emitter = require('events').EventEmitter,
-    util    = require('util'),
-    streams = require('../streams'),
-    Headers = require('./headers'),
-    Reader  = require('./stream_reader');
-
-var Base = function(request, url, options) {
-  Emitter.call(this);
-  Base.validateOptions(options || {}, ['maxLength', 'masking', 'requireMasking', 'protocols']);
-
-  this._request   = request;
-  this._reader    = new Reader();
-  this._options   = options || {};
-  this._maxLength = this._options.maxLength || this.MAX_LENGTH;
-  this._headers   = new Headers();
-  this.__queue    = [];
-  this.readyState = 0;
-  this.url        = url;
-
-  this.io = new streams.IO(this);
-  this.messages = new streams.Messages(this);
-  this._bindEventListeners();
-};
-util.inherits(Base, Emitter);
-
-Base.isWebSocket = function(request) {
-  var connection = request.headers.connection || '',
-      upgrade    = request.headers.upgrade || '';
-
-  return request.method === 'GET' &&
-         connection.toLowerCase().split(/ *, */).indexOf('upgrade') >= 0 &&
-         upgrade.toLowerCase() === 'websocket';
-};
-
-Base.validateOptions = function(options, validKeys) {
-  for (var key in options) {
-    if (validKeys.indexOf(key) < 0)
-      throw new Error('Unrecognized option: ' + key);
-  }
-};
-
-var instance = {
-  // This is 64MB, small enough for an average VPS to handle without
-  // crashing from process out of memory
-  MAX_LENGTH: 0x3ffffff,
-
-  STATES: ['connecting', 'open', 'closing', 'closed'],
-
-  _bindEventListeners: function() {
-    var self = this;
-
-    // Protocol errors are informational and do not have to be handled
-    this.messages.on('error', function() {});
-
-    this.on('message', function(event) {
-      var messages = self.messages;
-      if (messages.readable) messages.emit('data', event.data);
-    });
-
-    this.on('error', function(error) {
-      var messages = self.messages;
-      if (messages.readable) messages.emit('error', error);
-    });
-
-    this.on('close', function() {
-      var messages = self.messages;
-      if (!messages.readable) return;
-      messages.readable = messages.writable = false;
-      messages.emit('end');
-    });
-  },
-
-  getState: function() {
-    return this.STATES[this.readyState] || null;
-  },
-
-  addExtension: function(extension) {
-    return false;
-  },
-
-  setHeader: function(name, value) {
-    if (this.readyState > 0) return false;
-    this._headers.set(name, value);
-    return true;
-  },
-
-  start: function() {
-    if (this.readyState !== 0) return false;
-
-    if (!Base.isWebSocket(this._request))
-      return this._failHandshake(new Error('Not a WebSocket request'));
-
-    var response;
-
-    try {
-      response = this._handshakeResponse();
-    } catch (error) {
-      return this._failHandshake(error);
-    }
-
-    this._write(response);
-    if (this._stage !== -1) this._open();
-    return true;
-  },
-
-  _failHandshake: function(error) {
-    var headers = new Headers();
-    headers.set('Content-Type', 'text/plain');
-    headers.set('Content-Length', Buffer.byteLength(error.message, 'utf8'));
-
-    headers = ['HTTP/1.1 400 Bad Request', headers.toString(), error.message];
-    this._write(Buffer.from(headers.join('\r\n'), 'utf8'));
-    this._fail('protocol_error', error.message);
-
-    return false;
-  },
-
-  text: function(message) {
-    return this.frame(message);
-  },
-
-  binary: function(message) {
-    return false;
-  },
-
-  ping: function() {
-    return false;
-  },
-
-  pong: function() {
-      return false;
-  },
-
-  close: function(reason, code) {
-    if (this.readyState !== 1) return false;
-    this.readyState = 3;
-    this.emit('close', new Base.CloseEvent(null, null));
-    return true;
-  },
-
-  _open: function() {
-    this.readyState = 1;
-    this.__queue.forEach(function(args) { this.frame.apply(this, args) }, this);
-    this.__queue = [];
-    this.emit('open', new Base.OpenEvent());
-  },
-
-  _queue: function(message) {
-    this.__queue.push(message);
-    return true;
-  },
-
-  _write: function(chunk) {
-    var io = this.io;
-    if (io.readable) io.emit('data', chunk);
-  },
-
-  _fail: function(type, message) {
-    this.readyState = 2;
-    this.emit('error', new Error(message));
-    this.close();
-  }
-};
-
-for (var key in instance)
-  Base.prototype[key] = instance[key];
-
-
-Base.ConnectEvent = function() {};
-
-Base.OpenEvent = function() {};
-
-Base.CloseEvent = function(code, reason) {
-  this.code   = code;
-  this.reason = reason;
-};
-
-Base.MessageEvent = function(data) {
-  this.data = data;
-};
-
-Base.PingEvent = function(data) {
-  this.data = data;
-};
-
-Base.PongEvent = function(data) {
-  this.data = data;
-};
-
-module.exports = Base;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/client.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/client.js
deleted file mode 100644
index f24d645..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/client.js
+++ /dev/null
@@ -1,142 +0,0 @@
-'use strict';
-
-var Buffer     = require('safe-buffer').Buffer,
-    crypto     = require('crypto'),
-    url        = require('url'),
-    util       = require('util'),
-    HttpParser = require('../http_parser'),
-    Base       = require('./base'),
-    Hybi       = require('./hybi'),
-    Proxy      = require('./proxy');
-
-var Client = function(_url, options) {
-  this.version = 'hybi-' + Hybi.VERSION;
-  Hybi.call(this, null, _url, options);
-
-  this.readyState = -1;
-  this._key       = Client.generateKey();
-  this._accept    = Hybi.generateAccept(this._key);
-  this._http      = new HttpParser('response');
-
-  var uri  = url.parse(this.url),
-      auth = uri.auth && Buffer.from(uri.auth, 'utf8').toString('base64');
-
-  if (this.VALID_PROTOCOLS.indexOf(uri.protocol) < 0)
-    throw new Error(this.url + ' is not a valid WebSocket URL');
-
-  this._pathname = (uri.pathname || '/') + (uri.search || '');
-
-  this._headers.set('Host', uri.host);
-  this._headers.set('Upgrade', 'websocket');
-  this._headers.set('Connection', 'Upgrade');
-  this._headers.set('Sec-WebSocket-Key', this._key);
-  this._headers.set('Sec-WebSocket-Version', Hybi.VERSION);
-
-  if (this._protocols.length > 0)
-    this._headers.set('Sec-WebSocket-Protocol', this._protocols.join(', '));
-
-  if (auth)
-    this._headers.set('Authorization', 'Basic ' + auth);
-};
-util.inherits(Client, Hybi);
-
-Client.generateKey = function() {
-  return crypto.randomBytes(16).toString('base64');
-};
-
-var instance = {
-  VALID_PROTOCOLS: ['ws:', 'wss:'],
-
-  proxy: function(origin, options) {
-    return new Proxy(this, origin, options);
-  },
-
-  start: function() {
-    if (this.readyState !== -1) return false;
-    this._write(this._handshakeRequest());
-    this.readyState = 0;
-    return true;
-  },
-
-  parse: function(chunk) {
-    if (this.readyState === 3) return;
-    if (this.readyState > 0) return Hybi.prototype.parse.call(this, chunk);
-
-    this._http.parse(chunk);
-    if (!this._http.isComplete()) return;
-
-    this._validateHandshake();
-    if (this.readyState === 3) return;
-
-    this._open();
-    this.parse(this._http.body);
-  },
-
-  _handshakeRequest: function() {
-    var extensions = this._extensions.generateOffer();
-    if (extensions)
-      this._headers.set('Sec-WebSocket-Extensions', extensions);
-
-    var start   = 'GET ' + this._pathname + ' HTTP/1.1',
-        headers = [start, this._headers.toString(), ''];
-
-    return Buffer.from(headers.join('\r\n'), 'utf8');
-  },
-
-  _failHandshake: function(message) {
-    message = 'Error during WebSocket handshake: ' + message;
-    this.readyState = 3;
-    this.emit('error', new Error(message));
-    this.emit('close', new Base.CloseEvent(this.ERRORS.protocol_error, message));
-  },
-
-  _validateHandshake: function() {
-    this.statusCode = this._http.statusCode;
-    this.headers    = this._http.headers;
-
-    if (this._http.error)
-      return this._failHandshake(this._http.error.message);
-
-    if (this._http.statusCode !== 101)
-      return this._failHandshake('Unexpected response code: ' + this._http.statusCode);
-
-    var headers    = this._http.headers,
-        upgrade    = headers['upgrade'] || '',
-        connection = headers['connection'] || '',
-        accept     = headers['sec-websocket-accept'] || '',
-        protocol   = headers['sec-websocket-protocol'] || '';
-
-    if (upgrade === '')
-      return this._failHandshake("'Upgrade' header is missing");
-    if (upgrade.toLowerCase() !== 'websocket')
-      return this._failHandshake("'Upgrade' header value is not 'WebSocket'");
-
-    if (connection === '')
-      return this._failHandshake("'Connection' header is missing");
-    if (connection.toLowerCase() !== 'upgrade')
-      return this._failHandshake("'Connection' header value is not 'Upgrade'");
-
-    if (accept !== this._accept)
-      return this._failHandshake('Sec-WebSocket-Accept mismatch');
-
-    this.protocol = null;
-
-    if (protocol !== '') {
-      if (this._protocols.indexOf(protocol) < 0)
-        return this._failHandshake('Sec-WebSocket-Protocol mismatch');
-      else
-        this.protocol = protocol;
-    }
-
-    try {
-      this._extensions.activate(this.headers['sec-websocket-extensions']);
-    } catch (e) {
-      return this._failHandshake(e.message);
-    }
-  }
-};
-
-for (var key in instance)
-  Client.prototype[key] = instance[key];
-
-module.exports = Client;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/draft75.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/draft75.js
deleted file mode 100644
index 583f985..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/draft75.js
+++ /dev/null
@@ -1,123 +0,0 @@
-'use strict';
-
-var Buffer = require('safe-buffer').Buffer,
-    Base   = require('./base'),
-    util   = require('util');
-
-var Draft75 = function(request, url, options) {
-  Base.apply(this, arguments);
-  this._stage  = 0;
-  this.version = 'hixie-75';
-
-  this._headers.set('Upgrade', 'WebSocket');
-  this._headers.set('Connection', 'Upgrade');
-  this._headers.set('WebSocket-Origin', this._request.headers.origin);
-  this._headers.set('WebSocket-Location', this.url);
-};
-util.inherits(Draft75, Base);
-
-var instance = {
-  close: function() {
-    if (this.readyState === 3) return false;
-    this.readyState = 3;
-    this.emit('close', new Base.CloseEvent(null, null));
-    return true;
-  },
-
-  parse: function(chunk) {
-    if (this.readyState > 1) return;
-
-    this._reader.put(chunk);
-
-    this._reader.eachByte(function(octet) {
-      var message;
-
-      switch (this._stage) {
-        case -1:
-          this._body.push(octet);
-          this._sendHandshakeBody();
-          break;
-
-        case 0:
-          this._parseLeadingByte(octet);
-          break;
-
-        case 1:
-          this._length = (octet & 0x7F) + 128 * this._length;
-
-          if (this._closing && this._length === 0) {
-            return this.close();
-          }
-          else if ((octet & 0x80) !== 0x80) {
-            if (this._length === 0) {
-              this._stage = 0;
-            }
-            else {
-              this._skipped = 0;
-              this._stage   = 2;
-            }
-          }
-          break;
-
-        case 2:
-          if (octet === 0xFF) {
-            this._stage = 0;
-            message = Buffer.from(this._buffer).toString('utf8', 0, this._buffer.length);
-            this.emit('message', new Base.MessageEvent(message));
-          }
-          else {
-            if (this._length) {
-              this._skipped += 1;
-              if (this._skipped === this._length)
-                this._stage = 0;
-            } else {
-              this._buffer.push(octet);
-              if (this._buffer.length > this._maxLength) return this.close();
-            }
-          }
-          break;
-      }
-    }, this);
-  },
-
-  frame: function(buffer) {
-    if (this.readyState === 0) return this._queue([buffer]);
-    if (this.readyState > 1) return false;
-
-    if (typeof buffer !== 'string') buffer = buffer.toString();
-
-    var length = Buffer.byteLength(buffer),
-        frame  = Buffer.allocUnsafe(length + 2);
-
-    frame[0] = 0x00;
-    frame.write(buffer, 1);
-    frame[frame.length - 1] = 0xFF;
-
-    this._write(frame);
-    return true;
-  },
-
-  _handshakeResponse: function() {
-    var start   = 'HTTP/1.1 101 Web Socket Protocol Handshake',
-        headers = [start, this._headers.toString(), ''];
-
-    return Buffer.from(headers.join('\r\n'), 'utf8');
-  },
-
-  _parseLeadingByte: function(octet) {
-    if ((octet & 0x80) === 0x80) {
-      this._length = 0;
-      this._stage  = 1;
-    } else {
-      delete this._length;
-      delete this._skipped;
-      this._buffer = [];
-      this._stage  = 2;
-    }
-  }
-};
-
-for (var key in instance)
-  Draft75.prototype[key] = instance[key];
-
-module.exports = Draft75;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/draft76.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/draft76.js
deleted file mode 100644
index bdaab31..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/draft76.js
+++ /dev/null
@@ -1,117 +0,0 @@
-'use strict';
-
-var Buffer  = require('safe-buffer').Buffer,
-    Base    = require('./base'),
-    Draft75 = require('./draft75'),
-    crypto  = require('crypto'),
-    util    = require('util');
-
-
-var numberFromKey = function(key) {
-  return parseInt((key.match(/[0-9]/g) || []).join(''), 10);
-};
-
-var spacesInKey = function(key) {
-  return (key.match(/ /g) || []).length;
-};
-
-
-var Draft76 = function(request, url, options) {
-  Draft75.apply(this, arguments);
-  this._stage  = -1;
-  this._body   = [];
-  this.version = 'hixie-76';
-
-  this._headers.clear();
-
-  this._headers.set('Upgrade', 'WebSocket');
-  this._headers.set('Connection', 'Upgrade');
-  this._headers.set('Sec-WebSocket-Origin', this._request.headers.origin);
-  this._headers.set('Sec-WebSocket-Location', this.url);
-};
-util.inherits(Draft76, Draft75);
-
-var instance = {
-  BODY_SIZE: 8,
-
-  start: function() {
-    if (!Draft75.prototype.start.call(this)) return false;
-    this._started = true;
-    this._sendHandshakeBody();
-    return true;
-  },
-
-  close: function() {
-    if (this.readyState === 3) return false;
-    if (this.readyState === 1) this._write(Buffer.from([0xFF, 0x00]));
-    this.readyState = 3;
-    this.emit('close', new Base.CloseEvent(null, null));
-    return true;
-  },
-
-  _handshakeResponse: function() {
-    var headers = this._request.headers,
-        key1    = headers['sec-websocket-key1'],
-        key2    = headers['sec-websocket-key2'];
-
-    if (!key1) throw new Error('Missing required header: Sec-WebSocket-Key1');
-    if (!key2) throw new Error('Missing required header: Sec-WebSocket-Key2');
-
-    var number1 = numberFromKey(key1),
-        spaces1 = spacesInKey(key1),
-
-        number2 = numberFromKey(key2),
-        spaces2 = spacesInKey(key2);
-
-    if (number1 % spaces1 !== 0 || number2 % spaces2 !== 0)
-      throw new Error('Client sent invalid Sec-WebSocket-Key headers');
-
-    this._keyValues = [number1 / spaces1, number2 / spaces2];
-
-    var start   = 'HTTP/1.1 101 WebSocket Protocol Handshake',
-        headers = [start, this._headers.toString(), ''];
-
-    return Buffer.from(headers.join('\r\n'), 'binary');
-  },
-
-  _handshakeSignature: function() {
-    if (this._body.length < this.BODY_SIZE) return null;
-
-    var md5    = crypto.createHash('md5'),
-        buffer = Buffer.allocUnsafe(8 + this.BODY_SIZE);
-
-    buffer.writeUInt32BE(this._keyValues[0], 0);
-    buffer.writeUInt32BE(this._keyValues[1], 4);
-    Buffer.from(this._body).copy(buffer, 8, 0, this.BODY_SIZE);
-
-    md5.update(buffer);
-    return Buffer.from(md5.digest('binary'), 'binary');
-  },
-
-  _sendHandshakeBody: function() {
-    if (!this._started) return;
-    var signature = this._handshakeSignature();
-    if (!signature) return;
-
-    this._write(signature);
-    this._stage = 0;
-    this._open();
-
-    if (this._body.length > this.BODY_SIZE)
-      this.parse(this._body.slice(this.BODY_SIZE));
-  },
-
-  _parseLeadingByte: function(octet) {
-    if (octet !== 0xFF)
-      return Draft75.prototype._parseLeadingByte.call(this, octet);
-
-    this._closing = true;
-    this._length  = 0;
-    this._stage   = 1;
-  }
-};
-
-for (var key in instance)
-  Draft76.prototype[key] = instance[key];
-
-module.exports = Draft76;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/headers.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/headers.js
deleted file mode 100644
index bc96b7d..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/headers.js
+++ /dev/null
@@ -1,35 +0,0 @@
-'use strict';
-
-var Headers = function() {
-  this.clear();
-};
-
-Headers.prototype.ALLOWED_DUPLICATES = ['set-cookie', 'set-cookie2', 'warning', 'www-authenticate'];
-
-Headers.prototype.clear = function() {
-  this._sent  = {};
-  this._lines = [];
-};
-
-Headers.prototype.set = function(name, value) {
-  if (value === undefined) return;
-
-  name = this._strip(name);
-  value = this._strip(value);
-
-  var key = name.toLowerCase();
-  if (!this._sent.hasOwnProperty(key) || this.ALLOWED_DUPLICATES.indexOf(key) >= 0) {
-    this._sent[key] = true;
-    this._lines.push(name + ': ' + value + '\r\n');
-  }
-};
-
-Headers.prototype.toString = function() {
-  return this._lines.join('');
-};
-
-Headers.prototype._strip = function(string) {
-  return string.toString().replace(/^ */, '').replace(/ *$/, '');
-};
-
-module.exports = Headers;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi.js
deleted file mode 100644
index 9027f90..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi.js
+++ /dev/null
@@ -1,483 +0,0 @@
-'use strict';
-
-var Buffer     = require('safe-buffer').Buffer,
-    crypto     = require('crypto'),
-    util       = require('util'),
-    Extensions = require('websocket-extensions'),
-    Base       = require('./base'),
-    Frame      = require('./hybi/frame'),
-    Message    = require('./hybi/message');
-
-var Hybi = function(request, url, options) {
-  Base.apply(this, arguments);
-
-  this._extensions     = new Extensions();
-  this._stage          = 0;
-  this._masking        = this._options.masking;
-  this._protocols      = this._options.protocols || [];
-  this._requireMasking = this._options.requireMasking;
-  this._pingCallbacks  = {};
-
-  if (typeof this._protocols === 'string')
-    this._protocols = this._protocols.split(/ *, */);
-
-  if (!this._request) return;
-
-  var protos    = this._request.headers['sec-websocket-protocol'],
-      supported = this._protocols;
-
-  if (protos !== undefined) {
-    if (typeof protos === 'string') protos = protos.split(/ *, */);
-    this.protocol = protos.filter(function(p) { return supported.indexOf(p) >= 0 })[0];
-  }
-
-  this.version = 'hybi-' + Hybi.VERSION;
-};
-util.inherits(Hybi, Base);
-
-Hybi.VERSION = '13';
-
-Hybi.mask = function(payload, mask, offset) {
-  if (!mask || mask.length === 0) return payload;
-  offset = offset || 0;
-
-  for (var i = 0, n = payload.length - offset; i < n; i++) {
-    payload[offset + i] = payload[offset + i] ^ mask[i % 4];
-  }
-  return payload;
-};
-
-Hybi.generateAccept = function(key) {
-  var sha1 = crypto.createHash('sha1');
-  sha1.update(key + Hybi.GUID);
-  return sha1.digest('base64');
-};
-
-Hybi.GUID = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11';
-
-var instance = {
-  FIN:    0x80,
-  MASK:   0x80,
-  RSV1:   0x40,
-  RSV2:   0x20,
-  RSV3:   0x10,
-  OPCODE: 0x0F,
-  LENGTH: 0x7F,
-
-  OPCODES: {
-    continuation: 0,
-    text:         1,
-    binary:       2,
-    close:        8,
-    ping:         9,
-    pong:         10
-  },
-
-  OPCODE_CODES:    [0, 1, 2, 8, 9, 10],
-  MESSAGE_OPCODES: [0, 1, 2],
-  OPENING_OPCODES: [1, 2],
-
-  ERRORS: {
-    normal_closure:       1000,
-    going_away:           1001,
-    protocol_error:       1002,
-    unacceptable:         1003,
-    encoding_error:       1007,
-    policy_violation:     1008,
-    too_large:            1009,
-    extension_error:      1010,
-    unexpected_condition: 1011
-  },
-
-  ERROR_CODES:        [1000, 1001, 1002, 1003, 1007, 1008, 1009, 1010, 1011],
-  DEFAULT_ERROR_CODE: 1000,
-  MIN_RESERVED_ERROR: 3000,
-  MAX_RESERVED_ERROR: 4999,
-
-  // http://www.w3.org/International/questions/qa-forms-utf-8.en.php
-  UTF8_MATCH: /^([\x00-\x7F]|[\xC2-\xDF][\x80-\xBF]|\xE0[\xA0-\xBF][\x80-\xBF]|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}|\xED[\x80-\x9F][\x80-\xBF]|\xF0[\x90-\xBF][\x80-\xBF]{2}|[\xF1-\xF3][\x80-\xBF]{3}|\xF4[\x80-\x8F][\x80-\xBF]{2})*$/,
-
-  addExtension: function(extension) {
-    this._extensions.add(extension);
-    return true;
-  },
-
-  parse: function(chunk) {
-    this._reader.put(chunk);
-    var buffer = true;
-    while (buffer) {
-      switch (this._stage) {
-        case 0:
-          buffer = this._reader.read(1);
-          if (buffer) this._parseOpcode(buffer[0]);
-          break;
-
-        case 1:
-          buffer = this._reader.read(1);
-          if (buffer) this._parseLength(buffer[0]);
-          break;
-
-        case 2:
-          buffer = this._reader.read(this._frame.lengthBytes);
-          if (buffer) this._parseExtendedLength(buffer);
-          break;
-
-        case 3:
-          buffer = this._reader.read(4);
-          if (buffer) {
-            this._stage = 4;
-            this._frame.maskingKey = buffer;
-          }
-          break;
-
-        case 4:
-          buffer = this._reader.read(this._frame.length);
-          if (buffer) {
-            this._stage = 0;
-            this._emitFrame(buffer);
-          }
-          break;
-
-        default:
-          buffer = null;
-      }
-    }
-  },
-
-  text: function(message) {
-    if (this.readyState > 1) return false;
-    return this.frame(message, 'text');
-  },
-
-  binary: function(message) {
-    if (this.readyState > 1) return false;
-    return this.frame(message, 'binary');
-  },
-
-  ping: function(message, callback) {
-    if (this.readyState > 1) return false;
-    message = message || '';
-    if (callback) this._pingCallbacks[message] = callback;
-    return this.frame(message, 'ping');
-  },
-
-  pong: function(message) {
-      if (this.readyState > 1) return false;
-      message = message ||'';
-      return this.frame(message, 'pong');
-  },
-
-  close: function(reason, code) {
-    reason = reason || '';
-    code   = code   || this.ERRORS.normal_closure;
-
-    if (this.readyState <= 0) {
-      this.readyState = 3;
-      this.emit('close', new Base.CloseEvent(code, reason));
-      return true;
-    } else if (this.readyState === 1) {
-      this.readyState = 2;
-      this._extensions.close(function() { this.frame(reason, 'close', code) }, this);
-      return true;
-    } else {
-      return false;
-    }
-  },
-
-  frame: function(buffer, type, code) {
-    if (this.readyState <= 0) return this._queue([buffer, type, code]);
-    if (this.readyState > 2) return false;
-
-    if (buffer instanceof Array)    buffer = Buffer.from(buffer);
-    if (typeof buffer === 'number') buffer = buffer.toString();
-
-    var message = new Message(),
-        isText  = (typeof buffer === 'string'),
-        payload, copy;
-
-    message.rsv1   = message.rsv2 = message.rsv3 = false;
-    message.opcode = this.OPCODES[type || (isText ? 'text' : 'binary')];
-
-    payload = isText ? Buffer.from(buffer, 'utf8') : buffer;
-
-    if (code) {
-      copy = payload;
-      payload = Buffer.allocUnsafe(2 + copy.length);
-      payload.writeUInt16BE(code, 0);
-      copy.copy(payload, 2);
-    }
-    message.data = payload;
-
-    var onMessageReady = function(message) {
-      var frame = new Frame();
-
-      frame.final   = true;
-      frame.rsv1    = message.rsv1;
-      frame.rsv2    = message.rsv2;
-      frame.rsv3    = message.rsv3;
-      frame.opcode  = message.opcode;
-      frame.masked  = !!this._masking;
-      frame.length  = message.data.length;
-      frame.payload = message.data;
-
-      if (frame.masked) frame.maskingKey = crypto.randomBytes(4);
-
-      this._sendFrame(frame);
-    };
-
-    if (this.MESSAGE_OPCODES.indexOf(message.opcode) >= 0)
-      this._extensions.processOutgoingMessage(message, function(error, message) {
-        if (error) return this._fail('extension_error', error.message);
-        onMessageReady.call(this, message);
-      }, this);
-    else
-      onMessageReady.call(this, message);
-
-    return true;
-  },
-
-  _sendFrame: function(frame) {
-    var length = frame.length,
-        header = (length <= 125) ? 2 : (length <= 65535 ? 4 : 10),
-        offset = header + (frame.masked ? 4 : 0),
-        buffer = Buffer.allocUnsafe(offset + length),
-        masked = frame.masked ? this.MASK : 0;
-
-    buffer[0] = (frame.final ? this.FIN : 0) |
-                (frame.rsv1 ? this.RSV1 : 0) |
-                (frame.rsv2 ? this.RSV2 : 0) |
-                (frame.rsv3 ? this.RSV3 : 0) |
-                frame.opcode;
-
-    if (length <= 125) {
-      buffer[1] = masked | length;
-    } else if (length <= 65535) {
-      buffer[1] = masked | 126;
-      buffer.writeUInt16BE(length, 2);
-    } else {
-      buffer[1] = masked | 127;
-      buffer.writeUInt32BE(Math.floor(length / 0x100000000), 2);
-      buffer.writeUInt32BE(length % 0x100000000, 6);
-    }
-
-    frame.payload.copy(buffer, offset);
-
-    if (frame.masked) {
-      frame.maskingKey.copy(buffer, header);
-      Hybi.mask(buffer, frame.maskingKey, offset);
-    }
-
-    this._write(buffer);
-  },
-
-  _handshakeResponse: function() {
-    var secKey  = this._request.headers['sec-websocket-key'],
-        version = this._request.headers['sec-websocket-version'];
-
-    if (version !== Hybi.VERSION)
-      throw new Error('Unsupported WebSocket version: ' + version);
-
-    if (typeof secKey !== 'string')
-      throw new Error('Missing handshake request header: Sec-WebSocket-Key');
-
-    this._headers.set('Upgrade', 'websocket');
-    this._headers.set('Connection', 'Upgrade');
-    this._headers.set('Sec-WebSocket-Accept', Hybi.generateAccept(secKey));
-
-    if (this.protocol) this._headers.set('Sec-WebSocket-Protocol', this.protocol);
-
-    var extensions = this._extensions.generateResponse(this._request.headers['sec-websocket-extensions']);
-    if (extensions) this._headers.set('Sec-WebSocket-Extensions', extensions);
-
-    var start   = 'HTTP/1.1 101 Switching Protocols',
-        headers = [start, this._headers.toString(), ''];
-
-    return Buffer.from(headers.join('\r\n'), 'utf8');
-  },
-
-  _shutdown: function(code, reason, error) {
-    delete this._frame;
-    delete this._message;
-    this._stage = 5;
-
-    var sendCloseFrame = (this.readyState === 1);
-    this.readyState = 2;
-
-    this._extensions.close(function() {
-      if (sendCloseFrame) this.frame(reason, 'close', code);
-      this.readyState = 3;
-      if (error) this.emit('error', new Error(reason));
-      this.emit('close', new Base.CloseEvent(code, reason));
-    }, this);
-  },
-
-  _fail: function(type, message) {
-    if (this.readyState > 1) return;
-    this._shutdown(this.ERRORS[type], message, true);
-  },
-
-  _parseOpcode: function(octet) {
-    var rsvs = [this.RSV1, this.RSV2, this.RSV3].map(function(rsv) {
-      return (octet & rsv) === rsv;
-    });
-
-    var frame = this._frame = new Frame();
-
-    frame.final  = (octet & this.FIN) === this.FIN;
-    frame.rsv1   = rsvs[0];
-    frame.rsv2   = rsvs[1];
-    frame.rsv3   = rsvs[2];
-    frame.opcode = (octet & this.OPCODE);
-
-    this._stage = 1;
-
-    if (!this._extensions.validFrameRsv(frame))
-      return this._fail('protocol_error',
-          'One or more reserved bits are on: reserved1 = ' + (frame.rsv1 ? 1 : 0) +
-          ', reserved2 = ' + (frame.rsv2 ? 1 : 0) +
-          ', reserved3 = ' + (frame.rsv3 ? 1 : 0));
-
-    if (this.OPCODE_CODES.indexOf(frame.opcode) < 0)
-      return this._fail('protocol_error', 'Unrecognized frame opcode: ' + frame.opcode);
-
-    if (this.MESSAGE_OPCODES.indexOf(frame.opcode) < 0 && !frame.final)
-      return this._fail('protocol_error', 'Received fragmented control frame: opcode = ' + frame.opcode);
-
-    if (this._message && this.OPENING_OPCODES.indexOf(frame.opcode) >= 0)
-      return this._fail('protocol_error', 'Received new data frame but previous continuous frame is unfinished');
-  },
-
-  _parseLength: function(octet) {
-    var frame = this._frame;
-    frame.masked = (octet & this.MASK) === this.MASK;
-    frame.length = (octet & this.LENGTH);
-
-    if (frame.length >= 0 && frame.length <= 125) {
-      this._stage = frame.masked ? 3 : 4;
-      if (!this._checkFrameLength()) return;
-    } else {
-      this._stage = 2;
-      frame.lengthBytes = (frame.length === 126 ? 2 : 8);
-    }
-
-    if (this._requireMasking && !frame.masked)
-      return this._fail('unacceptable', 'Received unmasked frame but masking is required');
-  },
-
-  _parseExtendedLength: function(buffer) {
-    var frame = this._frame;
-    frame.length = this._readUInt(buffer);
-
-    this._stage = frame.masked ? 3 : 4;
-
-    if (this.MESSAGE_OPCODES.indexOf(frame.opcode) < 0 && frame.length > 125)
-      return this._fail('protocol_error', 'Received control frame having too long payload: ' + frame.length);
-
-    if (!this._checkFrameLength()) return;
-  },
-
-  _checkFrameLength: function() {
-    var length = this._message ? this._message.length : 0;
-
-    if (length + this._frame.length > this._maxLength) {
-      this._fail('too_large', 'WebSocket frame length too large');
-      return false;
-    } else {
-      return true;
-    }
-  },
-
-  _emitFrame: function(buffer) {
-    var frame   = this._frame,
-        payload = frame.payload = Hybi.mask(buffer, frame.maskingKey),
-        opcode  = frame.opcode,
-        message,
-        code, reason,
-        callbacks, callback;
-
-    delete this._frame;
-
-    if (opcode === this.OPCODES.continuation) {
-      if (!this._message) return this._fail('protocol_error', 'Received unexpected continuation frame');
-      this._message.pushFrame(frame);
-    }
-
-    if (opcode === this.OPCODES.text || opcode === this.OPCODES.binary) {
-      this._message = new Message();
-      this._message.pushFrame(frame);
-    }
-
-    if (frame.final && this.MESSAGE_OPCODES.indexOf(opcode) >= 0)
-      return this._emitMessage(this._message);
-
-    if (opcode === this.OPCODES.close) {
-      code   = (payload.length >= 2) ? payload.readUInt16BE(0) : null;
-      reason = (payload.length > 2) ? this._encode(payload.slice(2)) : null;
-
-      if (!(payload.length === 0) &&
-          !(code !== null && code >= this.MIN_RESERVED_ERROR && code <= this.MAX_RESERVED_ERROR) &&
-          this.ERROR_CODES.indexOf(code) < 0)
-        code = this.ERRORS.protocol_error;
-
-      if (payload.length > 125 || (payload.length > 2 && !reason))
-        code = this.ERRORS.protocol_error;
-
-      this._shutdown(code || this.DEFAULT_ERROR_CODE, reason || '');
-    }
-
-    if (opcode === this.OPCODES.ping) {
-      this.frame(payload, 'pong');
-      this.emit('ping', new Base.PingEvent(payload.toString()))
-    }
-
-    if (opcode === this.OPCODES.pong) {
-      callbacks = this._pingCallbacks;
-      message   = this._encode(payload);
-      callback  = callbacks[message];
-
-      delete callbacks[message];
-      if (callback) callback()
-
-      this.emit('pong', new Base.PongEvent(payload.toString()))
-    }
-  },
-
-  _emitMessage: function(message) {
-    var message = this._message;
-    message.read();
-
-    delete this._message;
-
-    this._extensions.processIncomingMessage(message, function(error, message) {
-      if (error) return this._fail('extension_error', error.message);
-
-      var payload = message.data;
-      if (message.opcode === this.OPCODES.text) payload = this._encode(payload);
-
-      if (payload === null)
-        return this._fail('encoding_error', 'Could not decode a text frame as UTF-8');
-      else
-        this.emit('message', new Base.MessageEvent(payload));
-    }, this);
-  },
-
-  _encode: function(buffer) {
-    try {
-      var string = buffer.toString('binary', 0, buffer.length);
-      if (!this.UTF8_MATCH.test(string)) return null;
-    } catch (e) {}
-    return buffer.toString('utf8', 0, buffer.length);
-  },
-
-  _readUInt: function(buffer) {
-    if (buffer.length === 2) return buffer.readUInt16BE(0);
-
-    return buffer.readUInt32BE(0) * 0x100000000 +
-           buffer.readUInt32BE(4);
-  }
-};
-
-for (var key in instance)
-  Hybi.prototype[key] = instance[key];
-
-module.exports = Hybi;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi/frame.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi/frame.js
deleted file mode 100644
index 0fb003f..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi/frame.js
+++ /dev/null
@@ -1,21 +0,0 @@
-'use strict';
-
-var Frame = function() {};
-
-var instance = {
-  final:        false,
-  rsv1:         false,
-  rsv2:         false,
-  rsv3:         false,
-  opcode:       null,
-  masked:       false,
-  maskingKey:   null,
-  lengthBytes:  1,
-  length:       0,
-  payload:      null
-};
-
-for (var key in instance)
-  Frame.prototype[key] = instance[key];
-
-module.exports = Frame;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi/message.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi/message.js
deleted file mode 100644
index e881273..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/hybi/message.js
+++ /dev/null
@@ -1,34 +0,0 @@
-'use strict';
-
-var Buffer = require('safe-buffer').Buffer;
-
-var Message = function() {
-  this.rsv1    = false;
-  this.rsv2    = false;
-  this.rsv3    = false;
-  this.opcode  = null;
-  this.length  = 0;
-  this._chunks = [];
-};
-
-var instance = {
-  read: function() {
-    return this.data = this.data || Buffer.concat(this._chunks, this.length);
-  },
-
-  pushFrame: function(frame) {
-    this.rsv1 = this.rsv1 || frame.rsv1;
-    this.rsv2 = this.rsv2 || frame.rsv2;
-    this.rsv3 = this.rsv3 || frame.rsv3;
-
-    if (this.opcode === null) this.opcode = frame.opcode;
-
-    this._chunks.push(frame.payload);
-    this.length += frame.length;
-  }
-};
-
-for (var key in instance)
-  Message.prototype[key] = instance[key];
-
-module.exports = Message;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/proxy.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/proxy.js
deleted file mode 100644
index 2fdd32e..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/proxy.js
+++ /dev/null
@@ -1,99 +0,0 @@
-'use strict';
-
-var Buffer     = require('safe-buffer').Buffer,
-    Stream     = require('stream').Stream,
-    url        = require('url'),
-    util       = require('util'),
-    Base       = require('./base'),
-    Headers    = require('./headers'),
-    HttpParser = require('../http_parser');
-
-var PORTS = { 'ws:': 80, 'wss:': 443 };
-
-var Proxy = function(client, origin, options) {
-  this._client  = client;
-  this._http    = new HttpParser('response');
-  this._origin  = (typeof client.url === 'object') ? client.url : url.parse(client.url);
-  this._url     = (typeof origin === 'object') ? origin : url.parse(origin);
-  this._options = options || {};
-  this._state   = 0;
-
-  this.readable = this.writable = true;
-  this._paused  = false;
-
-  this._headers = new Headers();
-  this._headers.set('Host', this._origin.host);
-  this._headers.set('Connection', 'keep-alive');
-  this._headers.set('Proxy-Connection', 'keep-alive');
-
-  var auth = this._url.auth && Buffer.from(this._url.auth, 'utf8').toString('base64');
-  if (auth) this._headers.set('Proxy-Authorization', 'Basic ' + auth);
-};
-util.inherits(Proxy, Stream);
-
-var instance = {
-  setHeader: function(name, value) {
-    if (this._state !== 0) return false;
-    this._headers.set(name, value);
-    return true;
-  },
-
-  start: function() {
-    if (this._state !== 0) return false;
-    this._state = 1;
-
-    var origin = this._origin,
-        port   = origin.port || PORTS[origin.protocol],
-        start  = 'CONNECT ' + origin.hostname + ':' + port + ' HTTP/1.1';
-
-    var headers = [start, this._headers.toString(), ''];
-
-    this.emit('data', Buffer.from(headers.join('\r\n'), 'utf8'));
-    return true;
-  },
-
-  pause: function() {
-    this._paused = true;
-  },
-
-  resume: function() {
-    this._paused = false;
-    this.emit('drain');
-  },
-
-  write: function(chunk) {
-    if (!this.writable) return false;
-
-    this._http.parse(chunk);
-    if (!this._http.isComplete()) return !this._paused;
-
-    this.statusCode = this._http.statusCode;
-    this.headers    = this._http.headers;
-
-    if (this.statusCode === 200) {
-      this.emit('connect', new Base.ConnectEvent());
-    } else {
-      var message = "Can't establish a connection to the server at " + this._origin.href;
-      this.emit('error', new Error(message));
-    }
-    this.end();
-    return !this._paused;
-  },
-
-  end: function(chunk) {
-    if (!this.writable) return;
-    if (chunk !== undefined) this.write(chunk);
-    this.readable = this.writable = false;
-    this.emit('close');
-    this.emit('end');
-  },
-
-  destroy: function() {
-    this.end();
-  }
-};
-
-for (var key in instance)
-  Proxy.prototype[key] = instance[key];
-
-module.exports = Proxy;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/server.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/server.js
deleted file mode 100644
index dc635b0..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/server.js
+++ /dev/null
@@ -1,112 +0,0 @@
-'use strict';
-
-var util       = require('util'),
-    HttpParser = require('../http_parser'),
-    Base       = require('./base'),
-    Draft75    = require('./draft75'),
-    Draft76    = require('./draft76'),
-    Hybi       = require('./hybi');
-
-var Server = function(options) {
-  Base.call(this, null, null, options);
-  this._http = new HttpParser('request');
-};
-util.inherits(Server, Base);
-
-var instance = {
-  EVENTS: ['open', 'message', 'error', 'close', 'ping', 'pong'],
-
-  _bindEventListeners: function() {
-    this.messages.on('error', function() {});
-    this.on('error', function() {});
-  },
-
-  parse: function(chunk) {
-    if (this._delegate) return this._delegate.parse(chunk);
-
-    this._http.parse(chunk);
-    if (!this._http.isComplete()) return;
-
-    this.method  = this._http.method;
-    this.url     = this._http.url;
-    this.headers = this._http.headers;
-    this.body    = this._http.body;
-
-    var self = this;
-    this._delegate = Server.http(this, this._options);
-    this._delegate.messages = this.messages;
-    this._delegate.io = this.io;
-    this._open();
-
-    this.EVENTS.forEach(function(event) {
-      this._delegate.on(event, function(e) { self.emit(event, e) });
-    }, this);
-
-    this.protocol = this._delegate.protocol;
-    this.version  = this._delegate.version;
-
-    this.parse(this._http.body);
-    this.emit('connect', new Base.ConnectEvent());
-  },
-
-  _open: function() {
-    this.__queue.forEach(function(msg) {
-      this._delegate[msg[0]].apply(this._delegate, msg[1]);
-    }, this);
-    this.__queue = [];
-  }
-};
-
-['addExtension', 'setHeader', 'start', 'frame', 'text', 'binary', 'ping', 'close'].forEach(function(method) {
-  instance[method] = function() {
-    if (this._delegate) {
-      return this._delegate[method].apply(this._delegate, arguments);
-    } else {
-      this.__queue.push([method, arguments]);
-      return true;
-    }
-  };
-});
-
-for (var key in instance)
-  Server.prototype[key] = instance[key];
-
-Server.isSecureRequest = function(request) {
-  if (request.connection && request.connection.authorized !== undefined) return true;
-  if (request.socket && request.socket.secure) return true;
-
-  var headers = request.headers;
-  if (!headers) return false;
-  if (headers['https'] === 'on') return true;
-  if (headers['x-forwarded-ssl'] === 'on') return true;
-  if (headers['x-forwarded-scheme'] === 'https') return true;
-  if (headers['x-forwarded-proto'] === 'https') return true;
-
-  return false;
-};
-
-Server.determineUrl = function(request) {
-  var scheme = this.isSecureRequest(request) ? 'wss:' : 'ws:';
-  return scheme + '//' + request.headers.host + request.url;
-};
-
-Server.http = function(request, options) {
-  options = options || {};
-  if (options.requireMasking === undefined) options.requireMasking = true;
-
-  var headers = request.headers,
-      version = headers['sec-websocket-version'],
-      key     = headers['sec-websocket-key'],
-      key1    = headers['sec-websocket-key1'],
-      key2    = headers['sec-websocket-key2'],
-      url     = this.determineUrl(request);
-
-  if (version || key)
-    return new Hybi(request, url, options);
-  else if (key1 || key2)
-    return new Draft76(request, url, options);
-  else
-    return new Draft75(request, url, options);
-};
-
-module.exports = Server;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/stream_reader.js b/frontend-old/node_modules/websocket-driver/lib/websocket/driver/stream_reader.js
deleted file mode 100644
index 3564da8..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/driver/stream_reader.js
+++ /dev/null
@@ -1,69 +0,0 @@
-'use strict';
-
-var Buffer = require('safe-buffer').Buffer;
-
-var StreamReader = function() {
-  this._queue     = [];
-  this._queueSize = 0;
-  this._offset    = 0;
-};
-
-StreamReader.prototype.put = function(buffer) {
-  if (!buffer || buffer.length === 0) return;
-  if (!Buffer.isBuffer(buffer)) buffer = Buffer.from(buffer);
-  this._queue.push(buffer);
-  this._queueSize += buffer.length;
-};
-
-StreamReader.prototype.read = function(length) {
-  if (length > this._queueSize) return null;
-  if (length === 0) return Buffer.alloc(0);
-
-  this._queueSize -= length;
-
-  var queue  = this._queue,
-      remain = length,
-      first  = queue[0],
-      buffers, buffer;
-
-  if (first.length >= length) {
-    if (first.length === length) {
-      return queue.shift();
-    } else {
-      buffer = first.slice(0, length);
-      queue[0] = first.slice(length);
-      return buffer;
-    }
-  }
-
-  for (var i = 0, n = queue.length; i < n; i++) {
-    if (remain < queue[i].length) break;
-    remain -= queue[i].length;
-  }
-  buffers = queue.splice(0, i);
-
-  if (remain > 0 && queue.length > 0) {
-    buffers.push(queue[0].slice(0, remain));
-    queue[0] = queue[0].slice(remain);
-  }
-  return Buffer.concat(buffers, length);
-};
-
-StreamReader.prototype.eachByte = function(callback, context) {
-  var buffer, n, index;
-
-  while (this._queue.length > 0) {
-    buffer = this._queue[0];
-    n = buffer.length;
-
-    while (this._offset < n) {
-      index = this._offset;
-      this._offset += 1;
-      callback.call(context, buffer[index]);
-    }
-    this._offset = 0;
-    this._queue.shift();
-  }
-};
-
-module.exports = StreamReader;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/http_parser.js b/frontend-old/node_modules/websocket-driver/lib/websocket/http_parser.js
deleted file mode 100644
index 1396656..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/http_parser.js
+++ /dev/null
@@ -1,135 +0,0 @@
-'use strict';
-
-var NodeHTTPParser = require('http-parser-js').HTTPParser,
-    Buffer         = require('safe-buffer').Buffer;
-
-var TYPES = {
-  request:  NodeHTTPParser.REQUEST  || 'request',
-  response: NodeHTTPParser.RESPONSE || 'response'
-};
-
-var HttpParser = function(type) {
-  this._type     = type;
-  this._parser   = new NodeHTTPParser(TYPES[type]);
-  this._complete = false;
-  this.headers   = {};
-
-  var current = null,
-      self    = this;
-
-  this._parser.onHeaderField = function(b, start, length) {
-    current = b.toString('utf8', start, start + length).toLowerCase();
-  };
-
-  this._parser.onHeaderValue = function(b, start, length) {
-    var value = b.toString('utf8', start, start + length);
-
-    if (self.headers.hasOwnProperty(current))
-      self.headers[current] += ', ' + value;
-    else
-      self.headers[current] = value;
-  };
-
-  this._parser.onHeadersComplete = this._parser[NodeHTTPParser.kOnHeadersComplete] =
-  function(majorVersion, minorVersion, headers, method, pathname, statusCode) {
-    var info = arguments[0];
-
-    if (typeof info === 'object') {
-      method     = info.method;
-      pathname   = info.url;
-      statusCode = info.statusCode;
-      headers    = info.headers;
-    }
-
-    self.method     = (typeof method === 'number') ? HttpParser.METHODS[method] : method;
-    self.statusCode = statusCode;
-    self.url        = pathname;
-
-    if (!headers) return;
-
-    for (var i = 0, n = headers.length, key, value; i < n; i += 2) {
-      key   = headers[i].toLowerCase();
-      value = headers[i+1];
-      if (self.headers.hasOwnProperty(key))
-        self.headers[key] += ', ' + value;
-      else
-        self.headers[key] = value;
-    }
-
-    self._complete = true;
-  };
-};
-
-HttpParser.METHODS = {
-  0:  'DELETE',
-  1:  'GET',
-  2:  'HEAD',
-  3:  'POST',
-  4:  'PUT',
-  5:  'CONNECT',
-  6:  'OPTIONS',
-  7:  'TRACE',
-  8:  'COPY',
-  9:  'LOCK',
-  10: 'MKCOL',
-  11: 'MOVE',
-  12: 'PROPFIND',
-  13: 'PROPPATCH',
-  14: 'SEARCH',
-  15: 'UNLOCK',
-  16: 'BIND',
-  17: 'REBIND',
-  18: 'UNBIND',
-  19: 'ACL',
-  20: 'REPORT',
-  21: 'MKACTIVITY',
-  22: 'CHECKOUT',
-  23: 'MERGE',
-  24: 'M-SEARCH',
-  25: 'NOTIFY',
-  26: 'SUBSCRIBE',
-  27: 'UNSUBSCRIBE',
-  28: 'PATCH',
-  29: 'PURGE',
-  30: 'MKCALENDAR',
-  31: 'LINK',
-  32: 'UNLINK'
-};
-
-var VERSION = process.version
-  ? process.version.match(/[0-9]+/g).map(function(n) { return parseInt(n, 10) })
-  : [];
-
-if (VERSION[0] === 0 && VERSION[1] === 12) {
-  HttpParser.METHODS[16] = 'REPORT';
-  HttpParser.METHODS[17] = 'MKACTIVITY';
-  HttpParser.METHODS[18] = 'CHECKOUT';
-  HttpParser.METHODS[19] = 'MERGE';
-  HttpParser.METHODS[20] = 'M-SEARCH';
-  HttpParser.METHODS[21] = 'NOTIFY';
-  HttpParser.METHODS[22] = 'SUBSCRIBE';
-  HttpParser.METHODS[23] = 'UNSUBSCRIBE';
-  HttpParser.METHODS[24] = 'PATCH';
-  HttpParser.METHODS[25] = 'PURGE';
-}
-
-HttpParser.prototype.isComplete = function() {
-  return this._complete;
-};
-
-HttpParser.prototype.parse = function(chunk) {
-  var consumed = this._parser.execute(chunk, 0, chunk.length);
-
-  if (typeof consumed !== 'number') {
-    this.error     = consumed;
-    this._complete = true;
-    return;
-  }
-
-  if (this._complete)
-    this.body = (consumed < chunk.length)
-              ? chunk.slice(consumed)
-              : Buffer.alloc(0);
-};
-
-module.exports = HttpParser;
diff --git a/frontend-old/node_modules/websocket-driver/lib/websocket/streams.js b/frontend-old/node_modules/websocket-driver/lib/websocket/streams.js
deleted file mode 100644
index 96ab31f..0000000
--- a/frontend-old/node_modules/websocket-driver/lib/websocket/streams.js
+++ /dev/null
@@ -1,146 +0,0 @@
-'use strict';
-
-/**
-
-Streams in a WebSocket connection
----------------------------------
-
-We model a WebSocket as two duplex streams: one stream is for the wire protocol
-over an I/O socket, and the other is for incoming/outgoing messages.
-
-
-                        +----------+      +---------+      +----------+
-    [1] write(chunk) -->| ~~~~~~~~ +----->| parse() +----->| ~~~~~~~~ +--> emit('data') [2]
-                        |          |      +----+----+      |          |
-                        |          |           |           |          |
-                        |    IO    |           | [5]       | Messages |
-                        |          |           V           |          |
-                        |          |      +---------+      |          |
-    [4] emit('data') <--+ ~~~~~~~~ |<-----+ frame() |<-----+ ~~~~~~~~ |<-- write(chunk) [3]
-                        +----------+      +---------+      +----------+
-
-
-Message transfer in each direction is simple: IO receives a byte stream [1] and
-sends this stream for parsing. The parser will periodically emit a complete
-message text on the Messages stream [2]. Similarly, when messages are written
-to the Messages stream [3], they are framed using the WebSocket wire format and
-emitted via IO [4].
-
-There is a feedback loop via [5] since some input from [1] will be things like
-ping, pong and close frames. In these cases the protocol responds by emitting
-responses directly back to [4] rather than emitting messages via [2].
-
-For the purposes of flow control, we consider the sources of each Readable
-stream to be as follows:
-
-* [2] receives input from [1]
-* [4] receives input from [1] and [3]
-
-The classes below express the relationships described above without prescribing
-anything about how parse() and frame() work, other than assuming they emit
-'data' events to the IO and Messages streams. They will work with any protocol
-driver having these two methods.
-**/
-
-
-var Stream = require('stream').Stream,
-    util   = require('util');
-
-
-var IO = function(driver) {
-  this.readable = this.writable = true;
-  this._paused  = false;
-  this._driver  = driver;
-};
-util.inherits(IO, Stream);
-
-// The IO pause() and resume() methods will be called when the socket we are
-// piping to gets backed up and drains. Since IO output [4] comes from IO input
-// [1] and Messages input [3], we need to tell both of those to return false
-// from write() when this stream is paused.
-
-IO.prototype.pause = function() {
-  this._paused = true;
-  this._driver.messages._paused = true;
-};
-
-IO.prototype.resume = function() {
-  this._paused = false;
-  this.emit('drain');
-
-  var messages = this._driver.messages;
-  messages._paused = false;
-  messages.emit('drain');
-};
-
-// When we receive input from a socket, send it to the parser and tell the
-// source whether to back off.
-IO.prototype.write = function(chunk) {
-  if (!this.writable) return false;
-  this._driver.parse(chunk);
-  return !this._paused;
-};
-
-// The IO end() method will be called when the socket piping into it emits
-// 'close' or 'end', i.e. the socket is closed. In this situation the Messages
-// stream will not emit any more data so we emit 'end'.
-IO.prototype.end = function(chunk) {
-  if (!this.writable) return;
-  if (chunk !== undefined) this.write(chunk);
-  this.writable = false;
-
-  var messages = this._driver.messages;
-  if (messages.readable) {
-    messages.readable = messages.writable = false;
-    messages.emit('end');
-  }
-};
-
-IO.prototype.destroy = function() {
-  this.end();
-};
-
-
-var Messages = function(driver) {
-  this.readable = this.writable = true;
-  this._paused  = false;
-  this._driver  = driver;
-};
-util.inherits(Messages, Stream);
-
-// The Messages pause() and resume() methods will be called when the app that's
-// processing the messages gets backed up and drains. If we're emitting
-// messages too fast we should tell the source to slow down. Message output [2]
-// comes from IO input [1].
-
-Messages.prototype.pause = function() {
-  this._driver.io._paused = true;
-};
-
-Messages.prototype.resume = function() {
-  this._driver.io._paused = false;
-  this._driver.io.emit('drain');
-};
-
-// When we receive messages from the user, send them to the formatter and tell
-// the source whether to back off.
-Messages.prototype.write = function(message) {
-  if (!this.writable) return false;
-  if (typeof message === 'string') this._driver.text(message);
-  else this._driver.binary(message);
-  return !this._paused;
-};
-
-// The Messages end() method will be called when a stream piping into it emits
-// 'end'. Many streams may be piped into the WebSocket and one of them ending
-// does not mean the whole socket is done, so just process the input and move
-// on leaving the socket open.
-Messages.prototype.end = function(message) {
-  if (message !== undefined) this.write(message);
-};
-
-Messages.prototype.destroy = function() {};
-
-
-exports.IO = IO;
-exports.Messages = Messages;
diff --git a/frontend-old/node_modules/websocket-driver/package.json b/frontend-old/node_modules/websocket-driver/package.json
deleted file mode 100644
index fab2506..0000000
--- a/frontend-old/node_modules/websocket-driver/package.json
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-          "name": "websocket-driver",
-          "description": "WebSocket protocol handler with pluggable I/O",
-          "homepage": "https://github.com/faye/websocket-driver-node",
-          "author": "James Coglan <jcoglan@gmail.com> (http://jcoglan.com/)",
-          "keywords": [
-                    "websocket"
-          ],
-          "license": "Apache-2.0",
-          "version": "0.7.4",
-          "engines": {
-                    "node": ">=0.8.0"
-          },
-          "files": [
-                    "lib"
-          ],
-          "main": "./lib/websocket/driver",
-          "dependencies": {
-                    "http-parser-js": ">=0.5.1",
-                    "safe-buffer": ">=5.1.0",
-                    "websocket-extensions": ">=0.1.1"
-          },
-          "devDependencies": {
-                    "jstest": "*",
-                    "permessage-deflate": "*"
-          },
-          "scripts": {
-                    "test": "jstest spec/runner.js"
-          },
-          "repository": {
-                    "type": "git",
-                    "url": "git://github.com/faye/websocket-driver-node.git"
-          },
-          "bugs": "https://github.com/faye/websocket-driver-node/issues"
-}