* SendmailService.cs:
* AuthSessionService.cs: Correct a bug with IE<9 because of the
  default cache policy

* ManageService.cs: Add the user-agent in the ManageService

* MessageService.cs: Provide SendMessageAsync API. Correct a bug with
  IE<9 because of the default cache policy and update to
  AcceptWebSocketRequestAsync API

* QueueService.cs: Update to AcceptWebSocketRequestAsync

* IStorageRights.cs: Updateh interface for storage rights

* StorageService.cs: Update to AcceptWebSocketRequestAsync. Use the
  storage rights interface.