pgpool - pgpool: Fix master/slave mode breakage in 2.7.2 Fix bug with

Log Message:
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Fix master/slave mode breakage in 2.7.2

Fix bug with master/slave mode and prepared query

Modified Files:
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pgpool:
pool.h (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool.h.diff?r1=1.7&r2=1.8)
pool_process_query.c (r1.12 -> r1.13)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/pool_process_query.c.diff?r1=1.12&r2=1.13)
child.c (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool/child.c.diff?r1=1.7&r2=1.8)