Log Message:-----------Add "High Availability, Load Balancing, and Replication Feature Matrix"table to docs.
Modified Files:-------------- pgsql/doc/src/sgml: high-availability.sgml (r1.17 -> r1.18) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/high-availability.sgml?r1=1.17&r2=1.18)
