api: Allow dashes in meter names.
Bump tweepy version.
api: Allow api keys not associated with a user.

Temporary hack until oauth2 provider is available.
backend: accept email, password, and photo parameters for new user.
Work around south issue #724.
api: Registration improvements.
twitter: Fix OAuth authorization.
twitter: Use special template for user's own tweets.
Small cleanups.
Twitter: Attach photo when available.
Experimental: account activation email.

Work in progress.
kegadmin: Save new beverage image.
Add activation migration.