haproxy: fixes from upstream

 - [PATCH 22/25] DOC: minor fix on {sc,src}_kbytes_{in,out}
 - [PATCH 23/25] DOC: fix alphabetical sort of converters
 - [PATCH 24/25] BUG/MAJOR: http: correctly rewind the request body
 - [PATCH 25/25] DOC: remove references to CPU=native in the README

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