Name: query_killable - get the killable status of a player

Syntax:
	int query_killable()

Description:
	The query_killable call gets the killable status of a player.
	If the player is killable it can kill other killable players and
	can get killed by them.

Return value:
	1 if the player is killable, 0 if not.

Examples:
	int killable;
	killable=this_player()->query_killable();

See also: player/make_killable