The idea is to represent all changes in the system (one or more Bugzilla connections) as one long list ("journal") with possibility of filtering:
- by Bugzilla connection
- by Product
- by Author of change
- maybe by other criteria or by generic query.

Group elements by date.

Use cases:
1. Find out what's new (since I last visited...)
2. Investigate work flow during period (manager's task)