How to change the owner/maintainer of teams and projects.

We are trying to change the owner of a team and the maintainer of two projects. The current owner and maintainer of those however is unable to do that. We have tried to search the Lauchpad Help pages, Google and even ask on #launchpad, but it seems that the functionality is missing for some reason.

We got a response at #launchpad that the current maintainer of a project should see a "yellow pencil" on the project main page, but that is not the case, at least with us. http://imagebin.org/203015

So, the question is: what is the procedure to change team owner and project maintainer?