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

Log Message:
-----------
* 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:
--------------
    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:
-----------
    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)