added the ability to turn on and off syncing. This allows people testing their application code to ignore syncing of entities
changed entity to use a celery task in the management command. Added an async option so that the management command can be performed asynchronously
fixed travis ci error
Merge pull request #8 from wesleykendall/develop

Turn on / off syncing
fixed version conflict
Merge pull request #9 from ambitioninc/release

Release