protected attributes can really hold a __roles__ list. Also, subclasses
often want to set up different protection for inherited attributes, in
which case either a copy of the DTMLFile is needed or the roles have to
be stored separately.

back in order.  The change to Management.py demonstrates the proper
way to fix the bug that today's patches were trying to address.

Catalog' which has the same naming scheme as all other Z* objects.
This won't affect the searing based on meta_type, just the thing
that's listed in the drop down list.

driven.

display of the top frame.

tag, rather than the singleton.  Also merged in the "add text" so it makes
more sense.  Lastly, made sure that if there's only one thing to be added
that its metatype shows up in the add button.