pgpool - pgpool: version 2.7 - add child_max_connections.

Log Message:
-----------
version 2.7
- add child_max_connections. contributed by Pomarede Nicolas with
   minor changes by Tatsuo
- add ignore_leading_white_space
- fix problem with copy on V2 protocol
- fix master/slave handling
- fix extended query

Modified Files:
--------------
    pgpool:
        ChangeLog (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/ChangeLog.diff?r1=1.10&r2=1.11)
        Makefile.in (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/Makefile.in.diff?r1=1.2&r2=1.3)
        NEWS (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/NEWS.diff?r1=1.10&r2=1.11)
        README (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/README.diff?r1=1.7&r2=1.8)
        README.euc_jp (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/README.euc_jp.diff?r1=1.6&r2=1.7)
        aclocal.m4 (r1.1.1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/aclocal.m4.diff?r1=1.1.1.1&r2=1.2)
        child.c (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/child.c.diff?r1=1.5&r2=1.6)
        configure (r1.9 -> r1.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/configure.diff?r1=1.9&r2=1.10)
        configure.in (r1.9 -> r1.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/configure.in.diff?r1=1.9&r2=1.10)
        main.c (r1.9 -> r1.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/main.c.diff?r1=1.9&r2=1.10)
        pgpool.conf.sample (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pgpool.conf.sample.diff?r1=1.2&r2=1.3)
        pool.h (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool.h.diff?r1=1.5&r2=1.6)
        pool_config.c (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool_config.c.diff?r1=1.4&r2=1.5)
        pool_config.l (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool_config.l.diff?r1=1.4&r2=1.5)
        pool_process_query.c (r1.8 -> r1.9)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool_process_query.c.diff?r1=1.8&r2=1.9)
        pool_stream.c (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool_stream.c.diff?r1=1.4&r2=1.5)
        version.h (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/version.h.diff?r1=1.2&r2=1.3)