Adding hooks, updating docs
Adding OpauthController->getSuccessBackURL
Version bump to 1.1
Added GetAuthSource
LogInAndRedirect changes
Adding default $summary_fields for any ModelAdmin implementation
FIX: Explicitly clear BackURL when logged in
NEW: Allow getCantLoginBackURL to be extended
NEW: Allow getCantLoginBackURL to be extended
Merge branch '1.1' of https://github.com/BetterBrief/silverstripe-opauth