================
Features
--------
- Add ``repoze.catalog.document.DocumentMap`` class, which provides a
mechanism to map "addresses" (paths) to document ids.
Documentation
-------------
- Add API documentation for catalog and document map.
Backwards incompatibilities
---------------------------
- Rename ``searchResults`` method to ``search``.
- Removed ``updateIndex`` and ``updateIndexes`` methods of catalog.
- All index implementations moved into ``repoze.catalog.indexes``.
- All interfaces moved to ``repoze.catalog.interfaces``.