Add Grunt as a dev dependency
Add basic Gruntfile.js
Add grunt-karma as a dev dependency
Add Grunt task ‘test’
Add grunt-contrib-uglify as a dev dependency
Add Grunt task ‘build’
Add grunt-contrib-cssmin as a dev dependency
Add cssmin to Grunt task ‘build’
Set ‘build’ as the default Grunt task
Mention ability to test using Grunt in README.md
Merge branch 'feature/grunt' into develop