dm.historical
=============
Utilities to access the historical state of objects stored in
a (history aware) ZODB (Zope Object DataBase).
They can be useful to find out what happened to objects in the past
and to restore accidentally deleted or modified objects.
I have used them recently to analyse a case where colleagues reported
about mysteriously lost objects. It turned out that the objects
have not been lost at all but only became unindexed.
This version is tested against ZODB 3.4. It will not work
with ZODB 3.2. It may (or may not) work with more recent ZODB versions ...