(svn r1337) Use MapMax[XY]() (or MapSize[XY]() if appropriate) instead of TILE_MAX_[XY]
While here replace one erroneous TILE_MAX_X with MapMaxY()

#ifndef CALLBACK_TABLE_H
#define CALLBACK_TABLE_H

extern CommandCallback *_callback_table[];
extern const int _callback_table_count;

#endif