NAME
	heart_beat - function call in objects

SYNOPSIS
	void heart_beat()


DESCRIPTION
	Any objects with a set heartbeat interval will be called with this
	function at a steady pace.

	It will not be defined in objects if config.h does NOT define
	MUDOS_HEART_BEAT.

ERRORS
	If an error is catched in the heart_beat function, the heartbeat
	in the object will be turned off.

SEE ALSO
	efun/heart_beat/
