SYNOPSIS
	void quota_demon(void)

DESCRIPTION
	Handle quotas in times of memory shortage.

	This function is called during the final phase of a garbage
	collection if the reserved user area couldn't be reallocated.
	This function (or a called demon) has now the opportunity to
	remove some (still active) objects from the system. If this does
	not free enough memory to reallocate the user reserve,
	slow_shut_down() will be called to start Armageddon.

	Up to now, the wizlist lacks various informations needed to
	detect the memory-hungriest users.

SEE ALSO
	slow_shut_down(M), wizlist(E)