Changes to squid-4.0.13 (05 Aug 2016):
- Regression Bug 4540: revert r14720 buffer update
- Bug 4555: Minor improvements to error pages CSS
- Bug 4551: fix exceptions in new chunked decoder
- Bug 4311: support collapse for internal revalidation requests (SMP-unaware caches)
- Fix Certificate Validator buffer-overflow crashes Squid
- Fix some failed transactions not being logged
- Fix segfault via Ftp::Client::readControlReply().
- basic_db_auth: add support for unsalted SHA1 passwords
- kerberos_ldap_group: add support for SSL/TLS connection to an LDAP server
- TLS: Add missing 'tls' option for cache_peer
- TLS: Do not hang when 'connector' fails
- TLS: Add support for fetching missing certificates
- Remove XSTD_USE_LIBLTDL, which has not been needed in a long while
- ... and many code polishing updates
- ... and some documentation updates