add initial UserGrid service classes as per diva's direction

this will initially store home location data instead of the presence service
compiles but not enough to actually test yet

OpenSim/Data/MySQL/MySQLGenericTableHandler.cs

@@ -197,8 +197,7 @@ namespace OpenSim.Data.MySQL
         public virtual T[] Get(string where)
         {
             using (MySqlCommand cmd = new MySqlCommand())
-            {
-            
+            {            
                 string query = String.Format("select * from {0} where {1}",
                                              m_Realm, where);