Break up transfer encoding logic into smaller methods
Attempt to be lazy about suspending and resuming reads
Actually be lazy about suspending
Don't allocate a response wrapper array by default
Change user agent access control handler into a more general ACL handler
Lazily allocate the attachments map
Revert "More UNDERTOW-151 ignores"

This reverts commit a7714daa1265bbdcc886271a7ecb6d120475145c.
Revert "@Ignore all Spnego tests for now, as they intermittently fail with -Pproxy"

This reverts commit c94a0c03f03719c6c09f517c5b7a6cca447113d1.
[UNDERTOW-161] An extension to the LoadBalancingProxyClient that allows for connections to be exclusively associated with the calling clients connection.