'Fixed' a 'bug' where MCServer would seemingly endlessly calculate lighting for an entire world (and then crash), when this entire world has 'wrong' lighting. This happens when running a converted map from Vanilla. Fixed this by only allowing a maximum of 50 chunks to recalculate their lighting per tick.
Fixed a small coding error in cChunkMap where it would check PakVersion twice, instead of also ChunkVersion.
DeNotch converter does not need the VS2010 runtime thingies anymore
git-svn-id: http://mc-server.googlecode.com/svn/trunk@138 0a769ca7-a7f5-676a-18bf-c427514a06d6
