denormalization and fixes
Added new indexes
CR fixes
Update query
Merge pull request #11 from dchaplinsky/simultaneous

Simultaneous
S3 setting is now can be changes via environment variable
Switched to the new version of unshred, mongodb setting can be overriden from env, so we still can use heroku
PEP008 changes, fix for gunicorn deploy, fix for js error on login page
Requirements bump
merge with master
Added new admin's features