update dependencies

app/node_modules/electron/install.js

@@ -17,16 +17,12 @@ try {
 
 var platformPath = getPlatformPath()
 
-if (installedVersion === version && fs.existsSync(path.join(__dirname, platformPath))) {
+var electronPath = process.env.ELECTRON_OVERRIDE_DIST_PATH || path.join(__dirname, 'dist', platformPath)
+
+if (installedVersion === version && fs.existsSync(electronPath)) {
   process.exit(0)
 }
 
-var mirror
-
-if (version.indexOf('nightly') !== -1) {
-  mirror = 'https://github.com/electron/nightlies/releases/download/v'
-}
-
 // downloads if not cached
 download({
   cache: process.env.electron_config_cache,
@@ -35,8 +31,7 @@ download({
   arch: process.env.npm_config_arch,
   strictSSL: process.env.npm_config_strict_ssl === 'true',
   force: process.env.force_no_cache === 'true',
-  quiet: process.env.npm_config_loglevel === 'silent' || process.env.CI,
-  mirror
+  quiet: process.env.npm_config_loglevel === 'silent' || process.env.CI
 }, extractFile)
 
 // unzips and makes path.txt point at the correct executable
@@ -59,12 +54,12 @@ function getPlatformPath () {
 
   switch (platform) {
     case 'darwin':
-      return 'dist/Electron.app/Contents/MacOS/Electron'
+      return 'Electron.app/Contents/MacOS/Electron'
     case 'freebsd':
     case 'linux':
-      return 'dist/electron'
+      return 'electron'
     case 'win32':
-      return 'dist/electron.exe'
+      return 'electron.exe'
     default:
       throw new Error('Electron builds are not available on platform: ' + platform)
   }