c-icap-0.4.4 changes:
Fix c-icap.conf installation and build problems
Fix c-icap build problem when poll is disabled
Bug fix: body->unlocked can be greater than the body->readpos causing segfault
to c-icap
Handle correctly missing proxy-user header in the case the RemoteProxyUsers is
enabled
Bug fix: Unexpected error waiting for or reading events in control socket!
ci_client_icapfilter does not send correct eof line on zero-sized files

(adam)