Move doc building scripts to new contrib directory

Change-Id: I9dd3b9dc23418e8572f8ab3056fd3bf5fe273ba1
Remove hardcoded build server hostname

This removes the hardcoded hostname for the
build server and replaces it with the hostname
fact.

Change-Id: Iafb457e351da24c31448cb75a26a00f6bfb4a05d
Merge "Move doc building scripts to new contrib directory"