Merge branch 'master' into irjudson

Conflicts:
	codalab/apps/web/static/foundation/css/codalab.css
	codalab/apps/web/templates/base.html
Back to one row per submission in the submission table
Clean up submission table and leaderboard to support previous results
Pointing footer help

Make footer help point to about help location
Adding stub for local execution
adding execution script

for local execution
no change?
Added compute.py
updated compute.py
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
Comment-out default permission for CompetitionApi view
Add flag to allow conditional styling of sign in and sign up forms
added setup to unit test
Fixed permissions model for destroy.
Add ability to download data from a competition's leaderboard. fixes #183
add bundles list
Merge branch 'master' of https://github.com/codalab/codalab
Fixed competition precision configuration for created competitions.