- Added case for clean-up routine where the meta type index contains keys that are not in the tree.
2.13.4
-------------------
- Provide security declaration for `BTreeFolder2Base.hasObject` method.
- Add some tests for correct `getattr` behavior.
- Minor `__getattr__` and `_getOb` optimizations.
2.13.3
Not secure
-------------------
- `keys`, `values` and `items` methods are now exactly the same as `objectIds`, `objectValues` and `objectItems`. They did the same before already but duplicated the code.
2.13.2
Not secure
-------------------
- `objectValues` and `objectItems` no longer do a special handling when no special `spec` is requested as `objectIds` already does the correct handling.
2.13.1
Not secure
-------------------
- Make sure that methods returning objects return them Acquisition wrapped.
- Be more careful in calling our own keys, values and items methods, as sub-classes might have overridden some of them.