Refs #2170
This removes the circular dependency problem from our models thanks to
https://github.com/tgriesser/bookshelf/issues/181
- add the registry plugin
- switch all models and collections to be registered
- switch relationships to be defined using a string, which calls from the registry
closes#2759closes#3027
- added oauth2orize library for server side oAuth handling
- added ember-simple-auth library for admin oAuth handling
- added tables for client, accesstoken and refreshtoken
- implemented RFC6749 4.3 Ressouce Owner Password Credentials Grant
- updated api tests with oAuth
- removed session, authentication is now token based
Known issues:
- Restore spam prevention #3128
- Signin after Signup #3125
- Signin validation #3125
**Attention**
- oldClient doesn't work with this PR anymore, session authentication
was
removed
