Tab Container Update
1. Added simple Droppable functionality
2. Show droppable area upon draggable is moved.
Merge branch 'configurator' of https://github.com/blackhydrogen/noop-sewi into configurator

Merge
Tab Container Update
1. code refracted
2. Methods are being abstracted to a new class called Tab
Tab Class Update
1. Added functionality to allow split view for 2 objects.
Merge branch 'configurator' of https://github.com/blackhydrogen/noop-sewi into configurator

Conflicts:
	static/sewi/js/app/main.js