Build docs

I am on the fence about whether I should submit this against 2.4-testing or master. I feel like it's fine to go into master, but if the reviewer disagrees I could be talked into putting it in 2.4 or 2.5.
Three more stable steps:

* update the "latest release" text on http://www.pulpproject.org/
* update freenode irc channel topic
* send email to pulp-list