Log Message:
-----------
Update release notes for 4-byte UTF mappings.
Modified Files:
--------------
pgsql/doc/src/sgml:
release.sgml (r1.375 -> r1.376)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.375&r2=1.376)