[Pgpool-committers] pgpool - pgpool-II: Deprecate backend_socket_dir.

[User T-ishii]

Log Message:
-----------
Deprecate backend_socket_dir. Instead, if backend_hostname starts with
'/' it is regarded the as path to Unix domain.
If backend_hostname is left empty, then default Unix domain path(/tmp)
is used. This follows the convention of libpq interface.
Patch contributed by Jehan-Guillaume de Rorthais.
Additional fixes to main.c and recovery.c by me.

Modified Files:
--------------
    pgpool-II:
        child.c (r1.66 -> r1.67)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/child.c?r1=1.66&r2=1.67)
        main.c (r1.90 -> r1.91)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/main.c?r1=1.90&r2=1.91)
        pool_config.c (r1.56 -> r1.57)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_config.c?r1=1.56&r2=1.57)
        pool_config.l (r1.52 -> r1.53)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_config.l?r1=1.52&r2=1.53)
        pool_connection_pool.c (r1.31 -> r1.32)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_connection_pool.c?r1=1.31&r2=1.32)
        pool_process_reporting.c (r1.21 -> r1.22)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_process_reporting.c?r1=1.21&r2=1.22)
        recovery.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/recovery.c?r1=1.18&r2=1.19)
    pgpool-II/doc:
        pgpool-en.html (r1.83 -> r1.84)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/doc/pgpool-en.html?r1=1.83&r2=1.84)