Add celery and associated tasks
Add service adapters for notifications
Merge branch 'master' of github.com:sunlightlabs/norrin

Conflicts:
	requirements.txt
Merge branch 'feature/tests'. Just a little testy.

Conflicts:
	notifications/services.py
Add nose test runner to requirements
Fix reference to db to self.db. Somehow this got lost in the merge.
Add start of MongoDBAdapter for logging
Add AUTORELOAD_SUBSCRIBERS to config (default is False) and have services obey this setting.
Add some basic bill test stuff. Failing right now.
Merge branch 'feature/tests'. Too much fail to go further.
util method yesterday does not accept any args.
Call Bill constructor without args to prevent key-value pairs (timestamp, processed) from being removed.
Merge some test updates.
Add configuration since option to load_data
Fix kwarg. This error returning means I need vacation.
Add SINCE_DATE to env/config. Use as arg to load_data's since kwarg.
Add adapter registry
remove dev.py
ignore dev.py
Add commented out finish blocks to existing services