v0.9.10

• Enh #767: Added support for MS SQL Server (tsdogs)
• Enh #795: Added method getAccountByProvider to User model to get account model by provider name (dmeroff)
• Fix #778: Migrations now use correct db component (dmeroff)
• Fix #777: Rethrow exception on failed user creation or registration (dmeroff)
• Enh #772, #791: Added ability to log into another user's account (thyseus)
• Fix #761: Fixed EVENT_AFTER_CONFIRM not triggering on user creation (dmeroff)
• Fix #757: Fixed tabindex order in security/login.php view (dmeroff)