Author: Steven Wilton <swilton@q-net.net.au>

Author: Steven Wilton <swilton@q-net.net.au>
Sort cache list in wccpv2 to ensure a consistent hash allocation across all serv
ices

Under some circumstances different caches were being allocated differnet hash
assignments for different wccpv2 services.  This caused problems when using
TPROXY as the reply traffic was being sent to a different cache than the request
causing problems in browsing web pages.

This patch applied a selection sort algorithm to the cache list to ensure that
as long as the same group of caches are registered for any number of wccpv2
services, they will be allocated the same hash assignments in the router.