Some new work with pathfinder and activated logger

- Removed CollisionHandler from Pathfinder.
- Added getSize function to AIMesh, returning the size of the map.
- Removed pathfinder travel translation and implemented a bigger map..
It was buggy.
- Added base collision response for minions. No pathfinding, but the
line is there, commented out
- Added Logger stuff. Made it more readable.
- Added bugfix that would try to get a location outside of the
heightmap.
- Several pathfinder bugs are fixed.