* 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
mingchen