Log Message: ----------- Enhance documentation of the build-in standby mode, explaining the retry loop in standby mode, trying to restore from archive, pg_xlog and streaming.
Move sections around to make the high availability chapter more coherent: the most prominent part is now a "Log-Shipping Standby Servers" section that describes what a standby server is (like the old "Warm Standby Servers for High Availability" section), and how to set up a warm standby server, including streaming replication, using the built-in standby mode. The pg_standby method is desribed in another section called "Alternative method for log shipping", with the added caveat that it doesn't work with streaming replication.
