fix interface_selector bug
If a view using this selector defines an `accepts` attribute, the
view should be selectable only if the entity is of one of the
accepted types (+need to consider schema inheritance)
This directory contains extra libraries which are neededto make cubicweb work.The mx.DateTime python implementation is directly taken fromthe mx.DateTime distribution. The only modification is thestrptime function which has been mocked using the standard``datetime`` module. (as provided by the python2.5's stdlib)