Add missing migration file
Update of German translation
Another small update of German translation
Make storage a recursive thing so one storage can be part of another one.
Also introduces a new configuration parameter to configure the delimiter between parents and child on such recursive relationships
Make usage of new confiurations parameter also on categories
Fix wording on part detail page and update German translation
Add a flag disabled to Part and Storage model to (temp) disable some
Don't show disabled parts on list of parts