Log Message:-----------Add upgrade script and instructions.
Modified Files:-------------- pginst: README (r1.13 -> r1.14) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/README.diff?r1=1.13&r2=1.14)
Added Files:----------- pginst/package: README (r1.2) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/package/README?rev=1.2&content-type=text/x-cvsweb-markup)