ModelAdminView add comm model base context.
add docs and review code.
change ``object_name`` to ``verbose_name``.
rename method :meth:`views.base.ModelAdminView.model_admin_urlname` to ``model_admin_url``
finish delete.py docs.
make message display info safe
change brand_icon to model_icon
add model icon into context
review code and update docs
remove popup
update docs and title
update list.py docs