Temporary fix until Swift Identity get on Packagist. Clients using Swift Identity will need to register the repository.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Merge branch 'develop' of github.com:cartalyst/sentry into develop
Complimenting Bruno's changes to the users/groups relationship.

Signed-off-by: Ben Corlett <bencorlett@me.com>