Log Message:
-----------
Update Statement-Based Replication Middleware docs to be more general.
Modified Files:
--------------
pgsql/doc/src/sgml:
high-availability.sgml (r1.5 -> r1.6)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/high-availability.sgml.diff?r1=1.5&r2=1.6)