[RELEASE] Released version 1.6.0

Released version 1.6.0 with the following main changes :
    - BUG/MINOR: Handle interactive mode in cli handler
    - DOC: global section missing parameters
    - DOC: backend section missing parameters
    - DOC: stats paramaters available in frontend
    - MINOR: lru: do not allocate useless memory in lru64_lookup
    - BUG/MINOR: http: Add OPTIONS in supported http methods (found by find_http_meth)
    - BUG/MINOR: ssl: fix management of the cache where forged certificates are stored
    - MINOR: ssl: Release Servers SSL context when HAProxy is shut down
    - MINOR: ssl: Read the file used to generate certificates in any order
    - MINOR: ssl: Add support for EC for the CA used to sign generated certificates
    - MINOR: ssl: Add callbacks to set DH/ECDH params for generated certificates
    - BUG/MEDIUM: logs: fix time zone offset format in RFC5424
    - BUILD: Fix the build on OSX (htonll/ntohll)
    - BUILD: enable build on Linux/s390x
    - BUG/MEDIUM: lua: direction test failed
    - MINOR: lua: fix a spelling error in some error messages
    - CLEANUP: cli: ensure we can never double-free error messages
    - BUG/MEDIUM: lua: force server-close mode on Lua services
    - MEDIUM: init: support more command line arguments after pid list
    - MEDIUM: init: support a list of files on the command line
    - MINOR: debug: enable memory poisonning to use byte 0
    - BUILD: ssl: fix build error introduced by recent commit
    - BUG/MINOR: config: make the stats socket pass the correct proxy to the parsers
    - MEDIUM: server: implement TCP_USER_TIMEOUT on the server
    - DOC: mention the "namespace" options for bind and server lines
    - DOC: add the "management" documentation
    - DOC: move the stats socket documentation from config to management
    - MINOR: examples: update haproxy.spec to mention new docs
    - DOC: mention management.txt in README
    - DOC: remove haproxy-{en,fr}.txt
    - BUILD: properly report when USE_ZLIB and USE_SLZ are used together
    - MINOR: init: report use of libslz instead of "no compression"
    - CLEANUP: examples: remove some obsolete and confusing files
    - CLEANUP: examples: remove obsolete configuration file samples
    - CLEANUP: examples: fix the example file content-sw-sample.cfg
    - CLEANUP: examples: update sample file option-http_proxy.cfg
    - CLEANUP: examples: update sample file ssl.cfg
    - CLEANUP: tests: move a test file from examples/ to tests/
    - CLEANUP: examples: shut up warnings in transparent proxy example
    - CLEANUP: tests: removed completely obsolete test files
    - DOC: update ROADMAP to remove what was done in 1.6
    - BUG/MEDIUM: pattern: fixup use_after_free in the pat_ref_delete_by_id
6 files changed