Started on a basic view. Added the jQuery and Handlebars javascript libr...

...aries

to make rendering/populating from json really easy. The view is still pretty
rough and needs more infrastructure and abstraction. Added a WidgetAssembler
class for making handlebars-compatible form input fields. Made some minor
fixes here and there as well. Added the GravitonView class and set up the
controller to use it.