Override IOPump to pass around more than one byte at a time, saves >10 seconds in unit tests and protocol decoding of partial messages is unit tested elsewhere anyway.
Override IOPump to pass around more than one byte at a time, saves >10 seconds in unit tests and protocol decoding of partial messages is unit tested elsewhere anyway.

git-svn-id: 554337001ebd49d78cdf0a90d762fa547a80d337@108 373aa48d-36e5-0310-bb30-ae74d9883905

antong/ldaptor,antong/ldaptor