divio/django-cms — pull request #2740 by jrief (2014-02-27 09:58:38+00:00)
Title: Fix issue 2709

This PR fixes issue #2709 and terminology as discussed in #2728.
``PlaceholderAdmin`` now is deprecated, but available as mixin class ``PlaceholderAdminMixin``.
``FrontendEditableAdmin`` was renamed to ``FrontendEditableAdminMixin`` since it always was a mixin class.