Move lighting logic into lighting store
RegionFileManager.TimeOutThread should be a daemon thread
Fix SPOUT-241
Merge pull request #2194 from Snaipe/chatfix

Fix SPOUT-241
Remove duplicated code, unneeded logic, simplify and document dynamic block updates
Make STANDARD_CHAT_PREFIX public
Added height map for lighting
Bug fix for SpoutColumn surface height calculations
Prevent invalid saved positions when joining the world to crash the server
Corrected variable name misspell