Add Procfile

- Add gunicorn to requirements
Add gunicorn to installed apps. Get broker url from env var.
Fix pika requirement syntax
Fix Procfile
Update gunicorn requirement to newer version

- Attempt to fix 'cannot import name AdminMediaHandler'
  error
Fix amqp_util connection creation

- Use urlparse to extract pieces from the broker url in settings

- Specify virtual_host to pika in order to connect properly
Limit celery broker connection pool to 2
PyCharm project file update