Log Message:
-----------
Properly credit Simon for functions pg_last_xlog_replay_location, etc.
Modified Files:
--------------
pgsql/doc/src/sgml:
release-9.0.sgml (r2.8 -> r2.9)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release-9.0.sgml?r1=2.8&r2=2.9)