feature(websockets): add basic websocket ability

app/routes/app/components/App.js

@@ -1,5 +1,6 @@
 // @flow
 import React, { Component } from 'react'
+import Websocket from 'react-websocket'
 import Form from './components/Form'
 import Nav from './components/Nav.js'
 import styles from './App.scss'
@@ -55,6 +56,12 @@ class App extends Component {
         <div className={styles.content}>
           {children}
         </div>
+        
+        <Websocket
+          debug
+          url='ws://localhost:3000/'
+          onMessage={(data) => console.log('data: ', data)}
+        />
       </div>
     )
   }

app/routes/wallet/components/components/Channels/Channels.js

@@ -42,15 +42,15 @@ class Channels extends Component {
             </div>
             <ul>
                 {
-                    !channelsLoading && allChannels.length ? 
-                        allChannels.map(channel => {
+                    !channelsLoading ? 
+                        allChannels.map((channel, index) => {
                             if (channel.hasOwnProperty('blocks_till_open')) {
                                 return (
-                                    <OpenPendingChannel />
+                                    <OpenPendingChannel key={index} />
                                 )
                             } else if (channel.hasOwnProperty('closing_txid')) {
                                 return (
-                                    <ClosedPendingChannel />
+                                    <ClosedPendingChannel key={index} />
                                 )
                             } else {
                                 return (

package-lock.json

@@ -12500,6 +12500,11 @@
         "warning": "3.0.0"
       }
     },
+    "react-websocket": {
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/react-websocket/-/react-websocket-1.1.7.tgz",
+      "integrity": "sha1-CnYfPeNU1HMfVTQ0VuA7H2AFtJI="
+    },
     "read-config-file": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/read-config-file/-/read-config-file-0.1.3.tgz",

package.json

@@ -203,6 +203,7 @@
     "react-router-redux": "^5.0.0-alpha.6",
     "react-svg": "^2.1.21",
     "react-svg-morph": "^0.1.10",
+    "react-websocket": "^1.1.7",
     "redux": "^3.7.1",
     "redux-thunk": "^2.2.0",
     "reselect": "^3.0.1",