WIP on binding/rivets module
Moved register() and unregister() from BaseWidget to Base;
Added resource setting into Base._setResource() which is triggered in Base.register()
Removed logic of Base._setResource() from Resrouced.register();
Changed default of destroy() from destroying resource to remove only from collection
Cleanup register() to only call bindData() if not opted out
Cleanup
Made binding/rivets-backbone module depend on data/backbone module
Bumped version to 0.0.63