* The ``content_type`` template filter has been removed from the project template, as the same thing can be accomplished with ``self.get_verbose_name|slugify``.
* The 'wagtail start' command now works on Windows and other environments where the ``django-admin.py`` executable is not readily accessible.
* The external image URL generator no longer stores generated images in Django's cache; this was an unintentional side-effect of setting cache control headers.
