v3.5.20

Changes to squid-3.5.20 (01 Jul 2016):

- Bug 4523: smblib compile fails on NetBSD
- Bug 4485: off-by-one out-of-bounds Parser::Tokenizer::int64() read errors
- Bug 3579: assertion failed 'MemPools[type]' from dst_as ACL
- Fix icons loading speed
- Fix OpenSSL detection on FreeBSD
- Fix assertion failed: Write.cc:38: 'fd_table[conn->fd].flags.open'
- Fix SEGFAULT parsing malformed adaptation service configuration
- Fix ConnStateData::In::maybeMakeSpaceAvailable() logic
- Do not override user defined -std option
- Do not allow low-level debugging to hide important/critical messages
- Do not make bogus recvmsg(2) calls when closing UDS sockets
- Support unified EUI format code in external_acl_type