Fixed crash if loading the map failed due to uninitialised value(s).
All mods and all maps can be run now (if the check for the heightmap resolution is removed).
Fixed also lints, mostly member variables that were not initialized in the constructor.
Merge branch 'master' of https://github.com/TheJosh/chaotic-rage
Merge pull request #81 from esper/master

All mods and maps working; more lint and cleanup