Remove leading whitespaces in files in common/ and game/
Remove windows-only lock for imax(), imin(), fmin() and fmax() (#11)
Change DefTimer to use const char* as arg instead of char*
Added new files to comile (#11)
Remove warning with forward declaration of ConduitTile (#11)
Remove unfinished net code from CMakeLists (#11)
Fix warning converting NULL to non-pointer type (#11)

Used 0 instead, appropriately. NULL is only for pointers only. God, what
an autistic reason.
Merge pull request #14 from polyf/polyf

Buildable release for Linux (and probably windows)