--------------------------
- Add model attributes to AbstractBlogLayout and BlogAdmin
that make them easier to subclass. Update AbstractBlogLayout
published queryset function to use fewer queries [Scott Clark, 18]
- **Backwards Incompatible:** Registered the ``BlogLayout`` model with widgy.
If you weren't using this as your Blog layout, you will need to unregister
it::
import widgy
from widgy_blog.models import BlogLayout
widgy.unregister(BlogLayout)
If you were already registering the ``BlogLayout`` yourself, you can just
remove that code.