Back to one row per submission in the submission table
Clean up submission table and leaderboard to support previous results
Merge branch 'master' into production

Conflicts:
	codalab/apps/web/tasks.py
	codalab/apps/web/templates/web/competitions/_results.html
	codalab/apps/web/templates/web/competitions/_submit_results.html
Resolve merge conflict
Turn off debug
Fixed package script
Added librabbitmq to requirements
Added event handling to celery worker config
Merge branch servertest: replace fixtures with a script; disable admin view
Merge branch 'master' of https://github.com/codalab/codalab into production
Fix typo
Updated nginix config to set server names
Merge branch 'master' of github.com:codalab/codalab
Re-enable Debug in DevBase config
Don't compress files dynamically