psqlodbc - psqlodbc: Fix some bugs.

Log Message:
-----------
Fix some bugs.
1. Reset the column binding information after SQLMoreResults().
2. Save the rowset size properly for the FETCH_NEXT operation
in case of >= 3.0 drivers.

Enable geqo optiomizer by default.

Modified Files:
--------------
psqlodbc:
convert.c (r1.168 -> r1.169)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/convert.c.diff?r1=1.168&r2=1.169)
dlg_specific.c (r1.81 -> r1.82)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/dlg_specific.c.diff?r1=1.81&r2=1.82)
dlg_specific.h (r1.57 -> r1.58)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/dlg_specific.h.diff?r1=1.57&r2=1.58)
odbcapi.c (r1.38 -> r1.39)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/odbcapi.c.diff?r1=1.38&r2=1.39)
odbcapi30.c (r1.43 -> r1.44)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/odbcapi30.c.diff?r1=1.43&r2=1.44)
options.c (r1.74 -> r1.75)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/options.c.diff?r1=1.74&r2=1.75)
pgxalib.cpp (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/pgxalib.cpp.diff?r1=1.4&r2=1.5)
results.c (r1.109 -> r1.110)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/results.c.diff?r1=1.109&r2=1.110)
statement.c (r1.136 -> r1.137)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/statement.c.diff?r1=1.136&r2=1.137)
statement.h (r1.77 -> r1.78)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/statement.h.diff?r1=1.77&r2=1.78)
version.h (r1.121 -> r1.122)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/version.h.diff?r1=1.121&r2=1.122)