psqlodbc - psqlodbc: 1.Improve the handling of bools_as_char case.

Log Message:
-----------
1.Improve the handling of bools_as_char case.
2.Fix a bug when creating a connection string.

Modified Files:
--------------
    psqlodbc:
        convert.c (r1.188 -> r1.189)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/convert.c?r1=1.188&r2=1.189)
        dlg_specific.c (r1.88 -> r1.89)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/dlg_specific.c?r1=1.88&r2=1.89)
        execute.c (r1.97 -> r1.98)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/execute.c?r1=1.97&r2=1.98)
        pgtypes.c (r1.90 -> r1.91)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/pgtypes.c?r1=1.90&r2=1.91)
        pgtypes.h (r1.37 -> r1.38)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/pgtypes.h?r1=1.37&r2=1.38)
        statement.c (r1.147 -> r1.148)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/statement.c?r1=1.147&r2=1.148)
        version.h (r1.158 -> r1.159)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/version.h?r1=1.158&r2=1.159)