psqlodbc - psqlodbc: Improve the transactional control under

Log Message:
-----------
Improve the transactional control under useDeclareFetch mode.

Modified Files:
--------------
    psqlodbc:
        connection.c (r1.178 -> r1.179)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/connection.c.diff?r1=1.178&r2=1.179)
        connection.h (r1.91 -> r1.92)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/connection.h.diff?r1=1.91&r2=1.92)
        convert.c (r1.177 -> r1.178)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/convert.c.diff?r1=1.177&r2=1.178)
        execute.c (r1.93 -> r1.94)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/execute.c.diff?r1=1.93&r2=1.94)
        options.c (r1.76 -> r1.77)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/options.c.diff?r1=1.76&r2=1.77)
        pgapi30.c (r1.47 -> r1.48)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/pgapi30.c.diff?r1=1.47&r2=1.48)
        psqlodbc.rc (r1.88 -> r1.89)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/psqlodbc.rc.diff?r1=1.88&r2=1.89)
        qresult.c (r1.72 -> r1.73)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/qresult.c.diff?r1=1.72&r2=1.73)
        results.c (r1.113 -> r1.114)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/results.c.diff?r1=1.113&r2=1.114)
        statement.c (r1.140 -> r1.141)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/statement.c.diff?r1=1.140&r2=1.141)
        version.h (r1.135 -> r1.136)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/version.h.diff?r1=1.135&r2=1.136)