Changes to squid-4.5 (01 Jan 2019):
- Bug 4253: ssl_bump prevents access to some web contents
- TLS: add %>handshake logformat code
- Redesign forward_max_tries to count TCP connection attempts
- Fix client_connection_mark ACL handling of clientless transactions
- Fix netdb exchange with a TLS cache_peer
- Update netdb when tunneling requests
- Use pkg-config for detecting libxml2
- ... and some documentation updates
- ... and some code compile fixes