FILE
	/usr/common/sys/zoned.c

NAME
	add_new_zone - add a new zone to the ZoneD

PROTOTYPE
	int add_new_zone(string zonename)

CALLED BY
	System, Common, Game

DESCRIPTION
	Adds a new zone to the zone table.  The index of the new zone
	is returned.  MapD is also updated.

RETURN VALUE
	The new zone index, or -1 if the call failed.

ERRORS
	Normally none.

SEE ALSO
	num_zones, get_name_for_zone, get_segments_in_zone