accelerating have been removed; sound when hitting parts of the track
have been re-enabled.
2) Special handling of smaller karts (wilber/hexley) has been removed.
3) Added option to specify the exact wheel positions for the physics.
4) Added option to move the center of gravity along all three axis
(not only height).
5) Added --kartsize-debug command line option to print the sizes of
each kart (which is useful when specifying the wheel positions).
6) Removed unused entry from stk_config.data.
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/trunk/supertuxkart@2168 178a84e3-b1eb-0310-8ba1-8eac791a3b58