Make the tag return value inherit from Object, so that things like #is_a? work.
Add support for 'widget WidgetClass, { :foo => 'bar' }', and 'Fortitude::Widget#parent_widget'.
Fix issue where calling render multiple times within a single Rails action would cause a nil dereference.
Make our double-render spec example render a partial, too.
Add a spec for RenderingContext#parent_widget.
Make sure we can call basic methods (like #is_a?, for example) on the return value of tag methods. Some users find they have infrastructure that ends up doing this, because the return value of tag methods ends up being the return value of #content on a widget class, and they do strange voodoo with class loading, etc.
Add a spec for Fortitude::Widget#widget.
Test to make sure Content-Type still gets set to text/html on "render :widget => ...".
Rework how we create rendering contexts: one per controller or template handler.
Add additional changes to CHANGES.