Lfun:	random_move - force a monster to make a random move

Synopsis:
	void random_move()

Description:
	The random_move call forces a monster to make a random move. First
        the environment of the monster is queried for a destination, see
        room/random_monster_move. If no direction is provided, or the function
        does not exist, the direction is selected randomly from the standard
        directions north, east, south, west, northwest...

Return value:
	none

Examples:
	find_living("harry")->random_move();

See also: monster/set_move_at_reset, living/run_away, living/query_wimpy,
          room/random_monster_move