[RELEASE] Released version 1.3.12.1 with the following main changes :

[RELEASE] Released version 1.3.12.1 with the following main changes :

    - spec I/O: fix allocations of spec entries for an FD
    - ensure we never overflow in chunk_printf()
    - improve behaviour with large number of servers per proxy
    - add support for "stats refresh <interval>"
    - stats page: added links for 'refresh' and 'hide down'
    - fix backend's weight in the stats page.
    - the "stats" keyword is not allowed in a pure frontend.
    - provide a test configuration file for stats and checks