[Zope] Search and replace

[Jonothan Farr]

> ideally two external methods. one recurses through folders collect
> objects of a particular meta_type
>
> the second external method calls the first to get a collection of
> objects for a particular meta_type and performs string manipulations on
> the raw() representation of the method.

I think a better implementation would be to add a 'Replacable' interface,
otherwise you have to assume too much about the internal representation of lots
of different classes of object.

--jfarr