Upgrade handlebars dep to ~1.3.0
Added a radio button group component. The radio button group has the following features:
1. Only one of the radio buttons can be selected.
2. Each radio button represents a distinct value, and the value of the selected radio button is stored in selectedValue, which can be bound to other variables.
Fixes mistake of previous commit to master where the radio-button.less file used the radio-input class, which is wrong because radio-input was something added in the example page rather than a class name of the component itself.
Update bower.json.
Also, some future-proofing for QUnit updates.
Makes it so that when a dropdown menu tries to dropup it only does so if there is enough room above -- defaults to dropping down
Adds the proper form-control class to select components