divio/django-cms — pull request #3683 by splaroche (2014-12-18 01:32:46+00:00)
Title: Fixes missing add_sideframe_button method.

When trying to use the `CMSToolbar.add_sideframe_button()` method an exception is thrown because `add_sideframe_button()` is not implemented on `ButtonList()`. This implements the missing method based on the pattern of the other methods in `ButtonList()`.