v4.0.2

Changes to squid-4.0.2 (01 Nov 2015):

- Regression Bug 4351: compile errors when authentication modules disabled
- Regression fix: HTTP/1.1 Transfer-Encoding:chunked parsing
- Bug 4359: assertion failure 'Comm::IsConnOpen(conn)' within ConnStateData::requestTimeout
- Bug 4356: segmentation fault using proxy_auth ACL
- Bug 4352: compile errors in OS X 10.11
- Bug 4021: ext_user_regex does exact match
- Bug 3574: avoid crashes, prohibit reconfiguration during shutdown
- Support re-assigning delay pools based on HTTP reply details
- ... and all fixes from squid 3.5.11