To ensure this is recorded and explicit for anyone who might want to roll out RelatedArticles to the desktop site:
Imagine the following scenarios:
* French Wikinews want to have related articles in stable on the desktop site (but all other wikis do not)
* We want to run an A/B test on a wiki project's desktop site to see if the engagement rate is higher when the audience includes anonymous readers
We currently have no mechanism to do either of these things.
== Acceptance critera
[] I have BetaFeatures extension installed, wgRelatedArticlesFooterBlacklistedSkins = [], wgRelatedArticlesShowInFooter = true, wgRelatedArticlesEnabledSamplingRate = 1
When I visit the Vector desktop skin I should see the related pages widget.
[x] I do not have BetaFeatures extension installed, wgRelatedArticlesFooterBlacklistedSkins = [], wgRelatedArticlesShowInFooter = true, wgRelatedArticlesEnabledSamplingRate = 1
When I visit the Vector desktop skin I should see the related pages widget.