Changed configuration so the app can run as a standalone app with uWSGI
Some small adjustments to make uwsgi works with static files
added xxx
Some small adjustments for a better experience on heroku
Added hooks to install nodejs and npm modules to the slug
heroku modifications
heroku modifications
changed npm installation for better results
Updated karma version
Finished migration to heroku. So long Google AppEngine
Merge branch 'heroku'

* heroku:
  Finished migration to heroku. So long Google AppEngine
  Updated karma version
  changed npm installation for better results
  heroku modifications
  heroku modifications
  Added hooks to install nodejs and npm modules to the slug
  Some small adjustments for a better experience on heroku
  added xxx
  Some small adjustments to make uwsgi works with static files
  Changed configuration so the app can run as a standalone app with uWSGI