Log Message:-----------Added upgrade script for existing userbase.
Added Files:----------- pgstatspack: upgrade_pgstatspack.sh (r1.1) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatspack/pgstatspack/upgrade_pgstatspack.sh?rev=1.1&content-type=text/x-cvsweb-markup)
