[RELEASE] Released version 1.6-dev7

Released version 1.6-dev7 with the following main changes :
    - MINOR: cli: Dump all resolvers stats if no resolver section is given
    - BUG: config: external-check command validation is checking for incorrect arguments.
    - DOC: documentation format cleanups
    - DOC: lua: few typos.
    - BUG/MEDIUM: str2ip: make getaddrinfo() consider local address selection policy
    - BUG/MEDIUM: logs: segfault writing to log from Lua
    - DOC: fix lua use-service example
    - MINOR: payload: add support for tls session ticket ext
    - MINOR: lua: remove the run flag
    - MEDIUM: lua: change the timeout execution
    - MINOR: lua: rename the tune.lua.applet-timeout
    - DOC: lua: update Lua doc
    - DOC: lua: update doc according with the last Lua changes
    - MINOR: http/tcp: fill the avalaible actions
    - DOC: reorder misplaced res.ssl_hello_type in the doc
    - BUG/MINOR: tcp: make silent-drop always force a TCP reset
    - CLEANUP: tcp: silent-drop: only drain the connection when quick-ack is disabled
    - BUILD: tcp: use IPPROTO_IP when SOL_IP is not available
    - BUILD: server: fix build warnings introduced by load-server-state
    - BUG/MEDIUM: server: fix misuse of format string in load-server-state's warnings
5 files changed