Author: Christos Tsantilas <chtsanti@users.sourceforge.net>

Author: Christos Tsantilas <chtsanti@users.sourceforge.net>
Bug #1971 fix, part 1: Check whether the store entry got aborted while
we were waiting for an asynchronous ICAP ACL check.

Also moved common icapAclCheckDone() code from FtpStateData and
HttpStateData into Server. Removed "if (eof) serverComplete()" checks from
HttpStateData::processReplyHeader and HttpStateData::failReply methods as
eof can no longer be true there.