Fixed SimpleApp - aka thankgoditssundaycommit

* Updated SimpleApp with various introduced dependencies
* Extracted ScenePrescence creation in Scene
* removed try-catchall from UserManagerBase (that actually hid a bug)
* Refactored RegionInfo
  * handle is calculated
  * it will explode upon accessing x,y,ip,port,externalip if not explicitly initialized
* Removed superfluous 'ref' keywords
* Removed a shitload of 'catch Exception e' that causes build warnings
* Lots of small refactorings, renames et c
* Ignored some bins

OpenSim/Framework/Data.SQLite/SQLiteManager.cs

@@ -198,7 +198,7 @@ namespace OpenSim.Framework.Data.SQLite
 
                 result.Dispose();
             }
-            catch (Exception e)
+            catch (Exception)
             {
                 return false;
             }