mantis 8212 do use defined sqlite connection

OpenSim/Data/SQLite/SQLiteXInventoryData.cs

@@ -308,15 +308,9 @@ namespace OpenSim.Data.SQLite
                 cmd.CommandText = "update inventoryfolders set version=version+1 where folderID = ?folderID";
                 cmd.Parameters.Add(new SqliteParameter(":folderID", folderID));
 
-                try
+                if(ExecuteNonQuery(cmd, m_Connection) == 0)
-                {
-                    cmd.ExecuteNonQuery();
-                }
-                catch (Exception)
-                {
                     return false;
             }
-            }
 
             return true;
         }