Log Message:
-----------
Update release notes in preparation for RC1.
Modified Files:
--------------
pgsql/doc/src/sgml:
release.sgml (r1.481 -> r1.482)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.481&r2=1.482)