Refactored styling out of view and into css file
Colorified grade status
Reinstated hover over grading queue rows
Recommented current_user
Merge branch 'new-ui' of https://github.com/Gonghan/whiteboard into new-ui

Conflicts:
	app/views/deliverables/_deliverable_listing_professor.html.erb
	public/stylesheets/site.css
Test filter defaults and filtering by team or individual
Spec for filter team/individuals
Merge branch 'new-ui' of https://github.com/Gonghan/whiteboard into new-ui
Merge branch 'update_specs' into new-ui
Updated sort specs
Merge branch 'update_specs' into new-ui
Fixed sort spec
Verifying the build is successful