[M] When aborting a level, lives and score should remain the same as they
were before. Solution: make more dependency between the game engine and worldmap
or just backup those variables before starting a level.
+[L] intro doesn't seamlessly wrap around, might be due to the new
+ scrolling code or due to the worldmap doing the drawing
[L] Backscroll is really messed up right now :)
[L] change lispreader to throw exceptions instead of simply assert() on
syntax error