haproxy: patches from upstream

haproxy: patches from upstream

- [PATCH 01/13] DOC: clearly state that the "show sess" output format
- [PATCH 02/13] MINOR: stats: fix minor typo fix in
- [PATCH 03/13] MEDIUM: Improve signal handling in systemd wrapper.
- [PATCH 04/13] MINOR: Also accept SIGHUP/SIGTERM in systemd-wrapper
- [PATCH 05/13] DOC: indicate in the doc that track-sc* can wait if
- [PATCH 06/13] MEDIUM: http: enable header manipulation for 101
- [PATCH 07/13] BUG/MEDIUM: config: propagate frontend to backend
- [PATCH 08/13] MEDIUM: config: properly propagate process binding
- [PATCH 09/13] MEDIUM: config: make the frontends automatically bind
- [PATCH 10/13] MEDIUM: config: compute the exact bind-process before
- [PATCH 11/13] MEDIUM: config: only warn if stats are attached to
- [PATCH 12/13] MEDIUM: config: report it when tcp-request rules are
- [PATCH 13/13] MINOR: config: detect the case where a tcp-request

Signed-off-by: Thomas Heil <heil@terminal-consulting.de>