[meta] Establish Rietveld Instance

[matze]

In order to achieve some progress in our effort to migrate to our own Rietveld instance, this ticket shall serve as a meta-ticket to monitor the current status.

Overview

Ticket	Status	Resolution	Summary	Component	Owner
#51	closed	fixed	Set up Rietveld on our own infrastructure	Infrastructure	matze
#1543	closed	fixed	Migrate to our own Rietveld instance	Infrastructure	matze
#2183	closed	fixed	Create gae2django and rietveld clone	Infrastructure
#2184	closed	incomplete	Configure Rietveld to use a more sophisticated RDBMS	Infrastructure
#2185	closed	fixed	Ensure Rietveld superuser creation errors are reported	Infrastructure	matze
#2186	closed	fixed	Integrate Django fixture upload with Rietveld	Infrastructure	matze
#2187	closed	fixed	Drop class rietveld::private in favor of function hiera()	Infrastructure	matze
#2633	closed	fixed	Run Rietveld using the AppEngine SDK	Infrastructure	trev
#2682	closed	fixed	GAE taskqueue does not recognize codereview.adblockplus.org	Infrastructure	matze
#2683	reviewing		Rietveld mails include reply@codereview-hr.appspotmail.com in various headers	Infrastructure	matze