Log Message:
Changes 3.5.11:
* Add Locker friend class to SBuf for protection against memory issues
* Connection stats, including %<lp, missing for persistent connections
* Fix incorrect authentication headers on cache digest requests
* Bug 4281: copy-paste typos in src/tools.cc
* Bug 4188: Bumping intercepted SSL connections does not work on Solaris
* Avoid errors when parsing manager ACL in old squid.conf
* Bug 4279: No response from proxy for FTP-download of non-existing file
* Bug 3574: crashes on reconfigure and startup
* Bug 4347: compile errors with LibreSSL 2.3