Implement worksheet lists (using Angular)
Merge pull request #416 from javierluraschi/AngularWorksheets

Implement worksheets list (using Angular)
Merge branch 'master' of https://github.com/codalab/codalab into dev

Conflicts:
	codalab/apps/api/views.py
	codalab/apps/web/static/app/js/app.js
	codalab/apps/web/static/app/partials/worksheets.html
	codalab/apps/web/static/codalab.min.js
	codalab/apps/web/static/codalab.min.map
	codalab/apps/web/static/css/Main.css
	codalab/apps/web/views.py
	scripts/javascript.py