We decided to have the extension as a betafeature for now.
Change 321864 had a related patch set uploaded (by Addshore):
WIP Make extension a betafeature
The patch is all ready and just needs a few things:
@Bmueller @Jan_Dittrich @Incabell
I've created T150847 for designing the logo.
Change 321864 merged by jenkins-bot:
Make extension a betafeature