[PATCH] [RFC] Bug 219

Attempted port for Delay Pools changeset
http://www.squid-cache.org/Versions/v2/HEAD/changesets/12093.patch

"
Bug #219: Reassign delay pools after reconfigure

This patch tries to reassign requests to delay pools after reconfigure,
making sure that pending requests still get delayed proper.
"

I'm not sure exactly what the delayMaxBodySize fields of
ClientHttpRequest have been converted to for 3.2. Or if it is even still
needed in 3.2.

As I understand it, at worst the omission means the pool gets reset to
"full" on reconfigure. Which is not good, but still better than not
delaying the entire remaining object.

I need:
  * Any hints what to add to fix that remaining delayMaxBodySize bug.
  * assistance testing.

Amos