electron-is-dev is now useless, use our own copy.

app/assets/js/assetguard.js

@@ -21,7 +21,6 @@ const child_process = require('child_process')
 const crypto        = require('crypto')
 const EventEmitter  = require('events')
 const fs            = require('fs')
-const isDev         = require('electron-is-dev')
 const mkpath        = require('mkdirp')
 const path          = require('path')
 const Registry      = require('winreg')
@@ -31,6 +30,7 @@ const zlib          = require('zlib')
 
 const ConfigManager = require('./configmanager')
 const DistroManager = require('./distromanager')
+const isDev         = require('./isdev')
 
 // Constants
 const PLATFORM_MAP = {

app/assets/js/isdev.js

@@ -0,0 +1,5 @@
+'use strict'
+const getFromEnv = parseInt(process.env.ELECTRON_IS_DEV, 10) === 1
+const isEnvSet = 'ELECTRON_IS_DEV' in process.env
+
+module.exports = isEnvSet ? getFromEnv : (process.defaultApp || /node_modules[\\/]electron[\\/]/.test(process.execPath))

app/assets/js/scripts/uicore.js

@@ -7,7 +7,7 @@
 // Requirements
 const $                                      = require('jquery')
 const {ipcRenderer, remote, shell, webFrame} = require('electron')
-const isDev                                  = require('electron-is-dev')
+const isDev                                  = require('./assets/js/isdev')
 const LoggerUtil                             = require('./assets/js/loggerutil')
 
 const loggerUICore             = LoggerUtil('%c[UICore]', 'color: #000668; font-weight: bold')