haproxy: bugfix release 1.5.13

haproxy: bugfix release 1.5.13

  Released version 1.5.13 with the following main changes :
  - BUG/MINOR: check: fix tcpcheck error message
  - CLEANUP: deinit: remove codes for cleaning p->block_rules
  - DOC: Update doc about weight, act and bck fields in the statistics
  - MINOR: ssl: add a destructor to free allocated SSL ressources
  - BUG/MEDIUM: ssl: fix tune.ssl.default-dh-param value being overwritten
  - MEDIUM: ssl: replace standards DH groups with custom ones
  - BUG/MINOR: debug: display (null) in place of "meth"
  - BUG/MINOR: cfgparse: fix typo in 'option httplog' error message
  - BUG/MEDIUM: cfgparse: segfault when userlist is misused
  - BUG/MEDIUM: stats: properly initialize the scope before dumping stats
  - BUG/MEDIUM: http: don't forward client shutdown without NOLINGER except for tunnels
  - CLEANUP: checks: fix double usage of cur / current_step in tcp-checks
  - BUG/MEDIUM: checks: do not dereference head of a tcp-check at the end
  - CLEANUP: checks: simplify the loop processing of tcp-checks
  - BUG/MAJOR: checks: always check for end of list before proceeding
  - BUG/MEDIUM: checks: do not dereference a list as a tcpcheck struct
  - BUG/MEDIUM: peers: apply a random reconnection timeout
  - BUG/MINOR: ssl: fix smp_fetch_ssl_fc_session_id
  - MEDIUM: init: don't stop proxies in parent process when exiting
  - MINOR: peers: store the pointer to the signal handler
  - MEDIUM: peers: unregister peers that were never started
  - MEDIUM: config: propagate the table's process list to the peers sections
  - MEDIUM: init: stop any peers section not bound to the correct process
  - MEDIUM: config: validate that peers sections are bound to exactly one process
  - MAJOR: peers: allow peers section to be used with nbproc > 1
  - DOC: relax the peers restriction to single-process
  - CLEANUP: config: fix misleading information in error message.
  - MINOR: config: report the number of processes using a peers section in the error case
  - BUG/MEDIUM: config: properly compute the default number of processes for a proxy

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