Enable MediaViewer suvery links on Commons

This was scheduled for the Commons deploy (about a month ago)
but apparently got forgotten.

Also rephrase the TODOs, they are looking ridiculous.

Change-Id: Ia8af99df132dbec692fb72129d041515543c3f10
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/714
Merge "Enable MediaViewer suvery links on Commons"