pgsnap - pgsnap: Add an "Exclusive Locks" report (without transactions

Log Message:
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Add an "Exclusive Locks" report (without transactions locks).

Modified Files:
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pgsnap/pgsnap:
ChangeLog (r1.39 -> r1.40)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/ChangeLog.diff?r1=1.39&r2=1.40)
TODO (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/TODO.diff?r1=1.13&r2=1.14)
pgsnap.php (r1.19 -> r1.20)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/pgsnap.php.diff?r1=1.19&r2=1.20)
pgsnap/pgsnap/lib:
navigate.php (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/lib/navigate.php.diff?r1=1.13&r2=1.14)