Add optional getauthinfo and setauthinfo authentication service calls.

These are disabled by default, as before.  Please only turn these on in secure grids, since they allow the same facilities as the existing SetPassword call (also disabled by default)
These facilities can be helpful when integrating external systems, in addition to the existing option of adapting an IAuthenticationService or using WebLoginKey

OpenSim/Server/Handlers/UserAccounts/UserAccountServerPostHandler.cs

@@ -356,7 +356,5 @@ namespace OpenSim.Server.Handlers.UserAccounts
             UTF8Encoding encoding = new UTF8Encoding();
             return encoding.GetBytes(xmlString);
         }
-
-
     }
 }