pgsnap - pgsnap: * Display database size with a graph.

Log Message:
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* Display database size with a graph.
* Display tablespace size with a graph.
* Display table size with a graph.
It relies on Open Flash Chart PHP library.

Modified Files:
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pgsnap/pgsnap:
ChangeLog (r1.49 -> r1.50)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/ChangeLog.diff?r1=1.49&r2=1.50)
INSTALL (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/INSTALL.diff?r1=1.2&r2=1.3)
TODO (r1.20 -> r1.21)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/TODO.diff?r1=1.20&r2=1.21)
pgsnap.php (r1.23 -> r1.24)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/pgsnap.php.diff?r1=1.23&r2=1.24)
pgsnap/pgsnap/lib:
getmodules.php (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/lib/getmodules.php.diff?r1=1.5&r2=1.6)
navigate.php (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/lib/navigate.php.diff?r1=1.16&r2=1.17)

Added Files:
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pgsnap/pgsnap/lib:
graph_dbsize.php (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/lib/graph_dbsize.php?rev=1.1&content-type=text/x-cvsweb-markup)
graph_tablesize.php (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/lib/graph_tablesize.php?rev=1.1&content-type=text/x-cvsweb-markup)
graph_tblspcsize.php (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgsnap/pgsnap/pgsnap/lib/graph_tblspcsize.php?rev=1.1&content-type=text/x-cvsweb-markup)