Released version 1.4.20 with the following main changes :
- BUG/MINOR: fix typo in processing of http-send-name-header
- BUG/MEDIUM: correctly disable servers tracking another disabled servers.
- BUG/MEDIUM: zero-weight servers must not dequeue requests from the backend
- MINOR: halog: add some help on the command line (cherry picked from commit 615674cdec067066a42f53f5d55628ab7b207e6c)
- BUILD: fix build error on FreeBSD
- BUG: queue: fix dequeueing sequence on HTTP keep-alive sessions
- BUG: http: disable TCP delayed ACKs when forwarding content-length data
- BUG: checks: fix server maintenance exit sequence
- BUG/MINOR: stream_sock: don't remove BF_EXPECT_MORE and BF_SEND_DONTWAIT on partial writes
- DOC: enumerate valid status codes for "observe layer7"
- BUILD: make it possible to look for pcre in the default system paths