* commented out a line in the M2 loader, it was causing a crash (?!)
* added NormalizeFilename() in tools.cpp, please use this when formatting filenames for linux
* TODO: remove doodads that are too far away or if the map is changed. currently its using A LOT of graphics power
* stuffextract does now extract all files referenced in ADTs.
* some adt loading fixes to be able to load expansion maps at least partially.
* fixed typos