gruntfile now uses cache busting filenames for the JS & CSS files.
default grunt task now runs the watch command, added 'dist' task to handle creating a production ready web app.
installed mocha & chai via 'npm install'.
added element to DOM which is used by app.js to add a welcome message.
added a test suite that contains an example test.
installed grunt-mocha via 'npm install'.
added mocha task to the gruntfile to run to test suite via grunt.
when running the 'watch' task via grunt, any changes to JS files in the src directory will trigger to test suite to be tested.
updated the README.