Log Message:
-----------
Some minor editing work on the release notes.
Modified Files:
--------------
pgsql/doc/src/sgml:
release.sgml (r1.320 -> r1.321)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.320&r2=1.321)