Log Message:-----------Create 9.0 release notes; keep 9.0-alpha release notes in place.
Modified Files:-------------- pgsql/doc/src/sgml: release-9.0.sgml (r2.2 -> r2.3) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release-9.0.sgml?r1=2.2&r2=2.3)
