- Add Dispose method to IRegionDataStore

- Add necessary dummy Dispose-methods where they are missing
- Implement the SQLite Dispose-methods
(currently only used for unit tests, in the next commit)

OpenSim/Data/NHibernate/NHibernateRegionData.cs

@@ -105,6 +105,8 @@ namespace OpenSim.Data.NHibernate
          *
          **********************************************************************/
 
+        public void Dispose() {}
+
         public void StoreRegionSettings(RegionSettings rs)
         {
         }