0.9.0

Changed

• Rename Doggo.modifier_classes/1 to Doggo.classes/1 and mix dog.modifiers
  to mix dog.classes. The function and mix task return all base classes,
  nested classes, and additional customizable classes in addition to the
  modifier classes now.
• Wrap inner block of box component into div.
• Add example styles for box and tag components.

Removed

• The fab component was removed. It might have made sense to have it as a
  separate component before components could be customized, but since the
  semantics are the same as a regular button, you can just make one with
  build_button(name: :fab, base_class: "fab") if you need it.