@aklapper: no problem! I will need a GIT Repo for this, i would just request one here: http://www.mediawiki.org/wiki/Git/New_repositories/Requests. I also renamed the extension to wmf, i don't know if there is already a phabricator extension that is named like that. I think i just request a repo and maybe Qchris will tell me which repo i should take :)

@epriestley: I just set up a phabricator vm for myself and added the extension, it worked without any problem. (thanks).
I'm still not sure if i should reuse the burnup chart or if i should implement the d3.js, It will depend on the time i have to spare

OK, my first steps will be to implement this just for wikimedia (quick and dirty), so I have to chance to get to know the phabricator source a bit better, then we will see how this moves further

@qgil I think the Quick and Dirty may be the faster/better way for me, but I'm always interested in a long term solution. I know there's no deadline for this, at least not yet :). By when do you need it (roughly)? If I'm assigned to more tasks I think I just have the time for the Quick and Dirty one.