(svn r2962) - const correctness for all Get* functions and most Draw* functions that don't change their pointer parameters

- change a lot of byte player types to PlayerID
- beautify header files, same "#endif /* filename */" ending

sprite.h

@@ -153,4 +153,4 @@ SpriteGroup *EvalRandomizedSpriteGroup(const RandomizedSpriteGroup *rsg, byte ra
  * (then they are |ed to @waiting_triggers instead). */
 byte RandomizedSpriteGroupTriggeredBits(const RandomizedSpriteGroup *rsg, byte triggers, byte *waiting_triggers);
 
-#endif
+#endif /* SPRITE_H */