Log Message:-----------Update release notes for recent changes; also minor editorialization.
Modified Files:-------------- pgsql/doc/src/sgml: release.sgml (r1.310 -> r1.311) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.310&r2=1.311)
