Some adjustments and expansions for Hades game added 2015 by Glünggi

Minetest mod: boost_cart
=======================
Based on the mod "carts" by PilzAdam
Target: Run smoothly and do not use too much CPU

License of source code:
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WTFPL

License of media (textures, sounds and models):
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CC-0

Authors of media files:
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kddekadenz:
  cart_bottom.png
  cart_side.png
  cart_top.png

Zeg9:
  cart.x
  cart.png
