Synnefo

Initial use django-tables2

improves table view development by spliting table data access and presentation
onto separate layers.

Remove obsolete code II

Testable settings use

Various auth providers fixes/improvements

- Handle invalid login after auth method add request
- Fix auth method add for unauthenticated users
- Third party auth providers helper methods in astakos.im.target module
- Provider login url template tag that handles code,key,next url params

Update tests