---
- introduce ``default_file_factory`` on directories for controlling default
file child creation.
[rnix, 2013-12-09]
- move file logic in ``FileStorage`` behavior.
[rnix, 2013-08-06]
- make ``file_factories`` a class property on directory storage.
[rnix, 2013-08-06]
- make ``ignores`` a class property on directory storage.
[rnix, 2013-08-06]
- Cleanup interfaces.
[rnix, 2013-08-06]