Publish to Sonatype OSS repository
Add MIT license file
Update to Play 2.2. PlayAuth.onAuth passes a Try[OAuthDetails]

PlayAuth.onAuth now passes a Try[OAuthDetails]. This means you don't have to use Refs if you don't want to. It also lets us attach additional details in future.

GitHubController and TwitterController no longer assume they have been configured correctly.

The dependency on salt-encrypt has been removed.