Log Message:
Changes 3.5.6:
* ext_edirectory_userip_acl: fix uninitialized variable
* Do not blindly forward cache peer CONNECT responses.
* Bug 3483: assertion failed store.cc:1866: 'isEmpty()'
* Use relative-URL in errorpage.css for SN.png
* Bug 4193: Memory leak on FTP listings
* Bug 4274: ssl_crtd.8 not being installed
* Fix CONNECT failover to IPv4 after trying broken IPv6 servers
* Bug 4183: segfault when freeing https_port clientca on reconfigure or exit.
* TLS: Disable client-initiated renegotiation
* Translations: add Spanish US dialect alias
* Cleanup: replace __DATE__ and __TIME__ macros
* Fix assertion String.cc:221: "str"
* Fix assertion comm.cc:759: "Comm::IsConnOpen(conn)" in \ 
ConnStateData::getSslContextDone
* Bug 3875: bad mimeLoadIconFile error handling
* Support custom OIDs in *_cert ACLs
* Bug 3329: The server side pinned connection is not closed properly