added calendar widget (needs color/styling update)
Adding HTML editing functions to competition edit page.

Conflicts:
	codalab/apps/web/forms.py
	codalab/apps/web/views.py
Added in leaderboard_management_mode for editing.

Conflicts:
	codalab/apps/web/forms.py
	codalab/apps/web/static/css/Main.css
	codalab/apps/web/views.py
Fixes for text area heights.
final updates for edit page

Conflicts:
	codalab/apps/web/forms.py
	codalab/apps/web/static/css/Main.css
Added tinyMCE
Fixing rendering HTML so it's consistent.
SASS changes for PR #350. Also fix compilation issues by moving import of settings file.
More SASS changes and font changes for PR#350.
Merge branch 'master' into dev
Next round of improvements for bundle display in worksheet.
Merge branch 'master' into dev
More incremental improvements to worksheet view.
Updated options to enable full HTML editing
Add new worksheet icons. Add parameter to deployment configuration to turn preview fetures on or off.
Experiment to Worksheet terminology change (except help and home page text)
Merge branch 'master' into dev
Merge branch 'master' into dev
Fixed last description "|safe" I could find.
Merge branch 'master' into dev