removing admin.root as per deprecation policy
|Reported by:||Florian Apolloner||Owned by:||nobody|
|Has patch:||yes||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||yes|
I started working on the admin deprecation stuff. There is one remaining #TODO where I don't know how to fix it. This only covers the python files. The templates would require a custom tag or something similar, cause I can't create the reverse name in the templates dynamically. I didn't find a nice solution to work around that, so I'll leave it for now.