Import cleanup/removed unneeded reference

AFDP-153
Yet another import cleanup

AFDP-153
Added url properties to Fixture Backbone models

AFDP-138
Added Handlebars templating library

AFDP-139
Made FixtureCollection a singleton object

AFDP-138
Lots of backbone work. Not done yet. Wanting to pull in other changes

AFDP-139
Fixed slight copy/paste oops
Add fixture form converted to backbone views

AFDP-139
Added handling for Edit button and form view

AFDP-139
Added servlet filter to handle PUT data when body is form-encoded

AFDP-139
Updated SockJS remove event handler to remove fixtures

AFDP-139
Finished fixtures view transition into Backbone models and views

AFDP-139
Added change highlighting to the table row view

AFDP-139
Javascript cleanup - removed old javascript no longer in use

AFDP-139