[Pgpool-committers] pgpool - pgpool-II: Add reset_context flag to session context.

[User T-ishii]

Log Message:
-----------
Add reset_context flag to session context.
This is to be called while executing reset queries.
Fix SimpleQuery so that if function call is executed under
dummy query context.

Modified Files:
--------------
    pgpool-II:
        pool_process_query.c (r1.226 -> r1.227)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_process_query.c?r1=1.226&r2=1.227)
        pool_proto_modules.c (r1.67 -> r1.68)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_proto_modules.c?r1=1.67&r2=1.68)
        pool_query_context.c (r1.19 -> r1.20)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_context.c?r1=1.19&r2=1.20)