Log Message:
2015/12/27 : 1.6.3
    - BUG/MINOR: http rule: http capture 'id' rule points to a non existing id
    - BUG/MINOR: server: check return value of fgets() in apply_server_state()
    - BUG/MINOR: acl: don't use record layer in req_ssl_ver
    - BUILD: freebsd: double declaration
    - BUG/MEDIUM: lua: clean output buffer
    - BUILD: check for libressl to be able to build against it
    - DOC: lua-api/index.rst small example fixes, spelling correction.
    - DOC: lua: architecture and first steps
    - DOC: relation between timeout http-request and option http-buffer-request
    - BUILD: Make deviceatlas require PCRE
    - BUG: http: do not abort keep-alive connections on server timeout
    - BUG/MEDIUM: http: switch the request channel to no-delay once done.
    - BUG/MINOR: lua: don't force-sslv3 LUA's SSL socket
    - BUILD/MINOR: http: proto_http.h needs sample.h
    - BUG/MEDIUM: http: don't enable auto-close on the response side
    - BUG/MEDIUM: stream: fix half-closed timeout handling
    - CLEANUP: compression: don't allocate DEFAULT_MAXZLIBMEM without USE_ZLIB
    - BUG/MEDIUM: cli: changing compression rate-limiting must require admin level
    - BUG/MEDIUM: sample: urlp can't match an empty value
    - BUILD: dumpstats: silencing warning for printf format specifier / time_t
    - CLEANUP: proxy: calloc call inverted arguments
    - MINOR: da: silent logging by default and displaying DeviceAtlas support if \ 
built.
    - BUG/MEDIUM: da: stop DeviceAtlas processing in the convertor if there is \ 
no input.
    - DOC: Edited 51Degrees section of README/ (cherry picked from commit \ 
a7bbdd955984f0d69812ff055cc145a338e76daa)
    - BUG/MEDIUM: checks: email-alert not working when declared in defaults
    - BUG/MINOR: checks: email-alert causes a segfault when an unknown mailers \ 
section is configured
    - BUG/MINOR: checks: typo in an email-alert error message
    - BUG/MINOR: tcpcheck: conf parsing error when no port configured on server \ 
and last rule is a CONNECT with no port
    - BUG/MINOR: tcpcheck: conf parsing error when no port configured on server \ 
and first rule(s) is (are) COMMENT
    - BUG/MEDIUM: http: fix http-reuse when frontend and backend differ
    - DOC: prefer using http-request/response over reqXXX/rspXXX directives
    - BUG/MEDIUM: config: properly adjust maxconn with nbproc when memmax is forced
    - BUG/MEDIUM: peers: table entries learned from a remote are pushed to \ 
others after a random delay.
    - BUG/MEDIUM: peers: old stick table updates could be repushed.
    - CLEANUP: haproxy: using _GNU_SOURCE instead of __USE_GNU macro.
    - MINOR: lua: service/applet can have access to the HTTP headers when a POST \ 
is received
    - REORG/MINOR: lua: convert boolean "int" to bitfield
    - BUG/MEDIUM: lua: Lua applets must not fetch samples using http_txn
    - BUG/MINOR: lua: Lua applets must not use http_txn
    - BUG/MEDIUM: lua: Forbid HTTP applets from being called from tcp rulesets
    - BUG/MAJOR: lua: Do not force the HTTP analysers in use-services
    - CLEANUP: lua: bad error messages
    - DOC: lua: fix lua API
    - DOC: mailers: typo in 'hostname' description
    - DOC: compression: missing mention of libslz for compression algorithm
    - BUILD/MINOR: regex: missing header
    - BUG/MINOR: stream: bad return code
    - DOC: lua: fix somme errors and add implicit types

While there, add better support for deviceatlas option, from David CARLIER.