Fixed head tag
Removed logging. Fixed template context format
Added env variable assertion
Fixed css and js links
Separeted css and js code into src/ and dist/ folders
Added psycopg2 requirement
Added django-toolbelt dependency
Changed gunicorn version. gunicorn19.0.0 breaks for Python2.7
Merge branch 'deploy-heroku'

Deployed to Heroku partly. DB not yet setup
Made canvas view set csrf cookie