Add timestamp & MD5 hash to avoid file cache. (.js/.css files)
NPM Home Page: https://www.npmjs.org/package/grunt-timestamp
This plugin requires Grunt ~0.4.1
If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:
npm install grunt-timestamp --save-dev
In your project's Gruntfile, add a section named timestamp to the data object passed into grunt.initConfig().
MD5string stamp supported