Work in progress: tweaks for deployment
Added manage shell to make using environment variables easier
Fixing registration workflow

To do ajax and update the page
Removed debug prints
Changed login/signup links

Added username to dropdown
Minor updates

As of this commit everything I can find is working, some things need
improved styling.

The two remaining pieces in place that need attention:
1) Delete competition is not working (not a priority)
2) Submit results isn't wired up yet. I need information on how to wire
that up.
Tweaks and Model changes

Fixed cross-section linking and updated styles so content is closer to
the prototype.
Celery tasks work in progress
bits and pieces to improve things
Update .gitignore

Ignore static and media files.
Fix syncdb step
Adjust placements of elements in competition summary of competitions list
Merge branch 'master' of https://github.com/codalab/codalab

Conflicts:
	codalab/apps/web/static/foundation/css/codalab.css
Merg UX changes from anjithpal
updated footer.
Added management to add submission
Merge branch 'master' of github.com:codalab/codalab
Merge branch 'master' into beaudev
Cleanup, wiring submission
Merge branch 'master' of https://github.com/codalab/codalab