(svn r6729) -Fix r6707: [build aircraft window] solved a crash when using a grf set with a buildable helicopter with a lower EngineID than the first buildable plane
Also removed a lot of const cast as they mess up the code and didn't help much

/* $Id$ */

#ifndef NAMEGEN_H
#define NAMEGEN_H

typedef byte TownNameGenerator(char *buf, uint32 seed);

extern TownNameGenerator * const _town_name_generators[];

#endif /* NAMEGEN_H */