Reset kart rotation when skidding is broken by rescue animation.

Minor improvements with breaking during skidding.

Conflicts:
	src/karts/skidding.cpp
Don't show jump animation during rescue

Conflicts:
	src/karts/kart.cpp
Set jump animation only if any other animation os not used.

It avoids to break eg. win/lose animation.
Remove unused variable.

Conflicts:
	src/karts/kart.hpp