What's new?

Minor changes & bug fixes

Various 'Python 3 only' code optimisations:

Removed future unicode handling imports throughout.
Replaced 'old style' class definitions with 'new style' ones.
Simplified super() syntax throughout to the cleaner Python 3 implementation.
Fixed deprecation warnings pertaining to use of TestCase.assertRaisesRegexp.
Fixed an issue that was preventing translated field label text appearing for the handle field when using the FLAT_MENUS_HANDLE_CHOICES setting (Contributed by @jeromelebleu)

This version only officially supports Wagtail and Django versions from
1.10 to 2.0. If you're using anything earlier than that, you should consider
updating your project. If upgrading Wagtail or Django isn't an option, it might be
best to stick with wagtailmenus 2.6 for now (which is a LTS release).
This version also drops support for anything earlier than Python 3.4.

Following the standard deprecation period, the following classes, methods and
behaviour has been removed:

The wagtailmenus.models.menus.MenuFromRootPage class was removed.
The __init__() method of wagtailmenus.models.menus.ChildrenMenu no
longer accepts a root_page keyword argument. The parent page should be
passed using the parent_page keyword instead.
The root_page attribute has been removed from the
wagtailmenus.models.menus.ChildrenMenu class. Use the parent_page
attribute instead.
The sub_menu template tag no longer accepts a stop_at_this_level
keyword argument.
The get_sub_menu_items_for_page() and prime_menu_items() methods
have been removed from wagtailmenus.templatetags.menu_tags.
The get_attrs_from_context() method has been removed from
wagtailmenus.utils.misc.
The get_template_names() and get_sub_menu_template_names() methods
have been removed from wagtailmenus.utils.template and the redundant
wagtailmenus.utils.template module removed.