Final fix for issue #13.
Merge branch 'resoCrashFix' of https://github.com/KristofDM/stk-code into KristofDM-resoCrashFix
Minor cleanup: renamed resetAllKarts back to unloadAllKarts (to avoid
confusion since resetAllKarts in world is called before a race),
and removed unused function.
Merge branch 'master' of github.com:supertuxkart/stk-code