to be used in a release. Currently DEBUG enables the F1/2/3
cheats to give a player sparks, missiles, homing missiles, and
enables the player to call for a rescue while not touching
the ground.
2) Added many casts from size_t to int (and similar), to remove
warnings when compiling with windows.
3) Disabled F4 'bullet debug' shortcut, since it doesn't work
and it's not too useful anyway.
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/trunk/supertuxkart@1333 178a84e3-b1eb-0310-8ba1-8eac791a3b58
