[RELEASE] released 1.3.4

[RELEASE] released 1.3.4

Released 1.3.4 with the following major changes :
    - support for cttproxy on the server side to present the client
      address to the server.
    - added support for SO_REUSEPORT on Linux (needs kernel patch)
    - new RFC2616-compliant HTTP request parser with header indexing
    - split proxies in frontends, rulesets and backends
    - implemented the 'req[i]setbe' to select a backend depending
      on the contents
    - added the 'default_backend' keyword to select a default BE.
    - new stats page featuring FEs and BEs + bytes in both dirs
    - improved log format to indicate the backend and the time in ms.
    - lots of cleanups