Updated QUnit references to version 1.13.0.
Updated QUnit references to version 1.14.0.
Upgraded grunt-contrib-cssmin to version 0.9.
Upgraded grunt-contrib-compress to version 0.7.
Upgraded grunt-contrib-uglify to version 0.4.
Upgraded grunt-contrib-watch to version 0.6.
Upgraded grunt-contrib-jshint to version 0.9.
Changed readme badges to use shields.io badges.