Log Message:-----------Add upgrade stuff
Added Files:----------- pginst/package: README.TXT (r1.2) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/package/README.TXT?rev=1.2&content-type=text/x-cvsweb-markup) upgrade.bat (r1.2) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/package/upgrade.bat?rev=1.2&content-type=text/x-cvsweb-markup)