delay class 4 - announcement

Just an small announcement:

class 4 delay pools are fully integrated into squid-3 HEAD.

a class 4 delay pool is just like a class 3 pool, but with an additional
collection of buckets, keyed by username.

This work was sponsored as part of a contract.

Rob

-- 
GPG key available at: <http://users.bigpond.net.au/robertc/keys.txt>.