psqlodbc - psqlodbc: Add Kerberos support.

Log Message:
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Add Kerberos support.
Update paths to use libpq from PostgreSQL 8.1 by default.

Modified Files:
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psqlodbc/installer:
psqlodbcm.wxs (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/installer/psqlodbcm.wxs.diff?r1=1.8&r2=1.9)
psqlodbc:
win32.mak (r1.27 -> r1.28)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/win32.mak.diff?r1=1.27&r2=1.28)