(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

tile.h

@@ -127,4 +127,4 @@ static inline bool IsTileOwner(TileIndex tile, Owner owner)
 	return GetTileOwner(tile) == owner;
 }
 
-#endif
+#endif /* TILE_H */