Changes since version 2.2-dev11 :

Olivier Houchard (4):
      BUG/MEDIUM: connections: Don't increase curr_used_conns for shared connections.
      BUG/MEDIUM: checks: Increment the server's curr_used_conns
      BUG/MINOR: threads: Don't forget to init each thread toremove_lock.
      BUG/MEDIUM: lists: Lock the element while we check if it is in a list.

Willy Tarreau (20):
      BUG/MINOR: mux_h2: don't lose the leaving trace in h2_io_cb()
      MINOR: cli: make "show sess" stop at the last known session
      CLEANUP: buffers: remove unused buffer_wq_lock lock
      BUG/MEDIUM: buffers: always allocate from the local cache first
      MINOR: connection: align toremove_{lock,connections} and cleanup into idle_conns
      CONTRIB: debug: add missing flags SI_FL_L7_RETRY & SI_FL_D_L7_RETRY
      REORG: buffer: rename buffer.c to dynbuf.c
      REORG: includes: create tinfo.h for the thread_info struct
      CLEANUP: pool: only include the type files from types
      MINOR: pools: move the LRU cache heads to thread_info
      BUG/MINOR: debug: fix "show fd" null-deref when built with DEBUG_FD
      MINOR: stats: add 3 new output values for the per-server idle conn state
      MINOR: activity: add per-thread statistics on FD takeover
      BUG/MINOR: server: start cleaning idle connections from various points
      MEDIUM: server: improve estimate of the need for idle connections
      MINOR: stats: add the estimated need of concurrent connections per server
      Revert "BUG/MEDIUM: lists: Lock the element while we check if it is in a list."
      BUG/MINOR: haproxy: don't wake already stopping threads on exit
      BUG/MINOR: server: always count one idle slot for current thread
      MEDIUM: server: use the two thresholds for the connection release algorithm