update dependencies

app/node_modules/electron-download/readme.md

@@ -1,8 +1,7 @@
 # electron-download
 
 [![Travis Build Status](https://travis-ci.org/electron-userland/electron-download.svg?branch=master)](https://travis-ci.org/electron-userland/electron-download)
-[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/dtu6of8wgtva0t8l?svg=true)](https://ci.appveyor.com/project/Atom/electron-download)
-
+[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/fmfbjmrs42d7bctn/branch/master?svg=true)](https://ci.appveyor.com/project/electron-bot/electron-download/branch/master)
 
 [![NPM](https://nodei.co/npm/electron-download.png?downloads=true)](https://www.npmjs.com/package/electron-download)
 
@@ -12,19 +11,21 @@ Used by [electron-prebuilt](https://npmjs.org/electron-prebuilt) and [electron-p
 
 ### Usage
 
+**Note: Requires Node >= 4.0 to run.**
+
 ```shell
 $ npm install --global electron-download
 $ electron-download --version=0.31.1
 ```
 
 ```javascript
-var download = require('electron-download')
+const download = require('electron-download')
 
 download({
   version: '0.25.1',
   arch: 'ia32',
   platform: 'win32',
-  cache: './zips' // defaults to <user's home directory>/.electron
+  cache: './zips'
 }, function (err, zipPath) {
   // zipPath will be the path of the zip that it downloaded.
   // If the zip was already cached it will skip
@@ -56,10 +57,50 @@ ELECTRON_MIRROR="https://npm.taobao.org/mirrors/electron/"
 ## or for a local mirror
 ELECTRON_MIRROR="https://10.1.2.105/"
 ELECTRON_CUSTOM_DIR="our/internal/filePath"
+ELECTRON_CUSTOM_FILENAME="electron.zip"
 ```
 
 You can set ELECTRON_MIRROR in `.npmrc` as well, using the lowercase name:
 
 ```plain
 electron_mirror=https://10.1.2.105/
+electron_custom_dir="our/internal/filePath"
+electron_custom_filename="electron.zip"
 ```
+
+You can also set the same variables in your project's package.json:
+
+```json
+{
+    "name" : "my-electron-project",
+    "config" : {
+        "electron_mirror": "https://10.1.2.105/",
+        "electron_custom_dir": "our/internal/filePath",
+        "electron_custom_filename": "electron.zip"
+    }
+}
+```
+
+The order of precedence is:
+
+1. npm config or .npmrc, uppercase (`process.env.NPM_CONFIG_ELECTRON_*`)
+1. npm config or .npmrc, lowercase(`process.env.npm_config_electron_*`)
+1. package.json (`process.env.npm_package_config_electron_*`)
+1. environment variables (`process.env.ELECTRON_*`)
+1. the options given to `download`
+1. defaults
+
+You can also disable checksum validation if you really want to (this is in
+general a bad idea).  Do this by setting `disableChecksumSafetyCheck` to `true`
+in the options object.  Use this only when testing local build of Electron,
+if you have internal builds of Electron you should generate the SHASUMS file
+yourself and let `electron-download` still perform its hash validations.
+
+### Cache location
+The location of the cache depends on the operating system, the defaults are:
+- Linux: `$XDG_CACHE_HOME` or `~/.cache/electron/`
+- MacOS: `~/Library/Caches/electron/`
+- Windows: `$LOCALAPPDATA/electron/Cache` or `~/AppData/Local/electron/Cache/`
+
+You can set the `ELECTRON_CACHE` environment variable to set cache location explicitly.
+