doc: reinstated mvc reference, add view to adapters/__init__.py

kivy/adapters/__init__.py

@@ -4,8 +4,8 @@ Adapters
 
 .. versionadded:: 1.5.0
 
-An adapter is a mediating class that processes and presents data for use in
-views. It does this by generating models, generally lists of
+An adapter is a mediating controller-type class that processes and presents
+data for use in views. It does this by generating models, generally lists of
 :class:`~kivy.uix.listview.SelectableView` items, that are consumed and
 presented by views. Views are top-level widgets, such as a 
 :class:`~kivy.uix.listview.ListView`, that allow users to scroll through
@@ -13,6 +13,10 @@ and (optionally) interact with your data.
 
 Kivy adapters are modelled on the
 `Adapter design pattern <http://en.wikipedia.org/wiki/Adapter_pattern>`_.
+Conceptually, they play the role of a 'controller' between you data and views
+in a `Model-View-Controller
+<https://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller>`_
+type architecture.
 
 - **Adapters**: The base :class:`Adapter` is subclassed by the
   :class:`SimpleListAdapter` and :class:`ListAdapter`. The :class:`DictAdapter`
@@ -38,5 +42,12 @@ Kivy adapters are modelled on the
 
     :doc:`api-kivy.adapters.args_converters`.
 
+- **Views**: Models of your data are presented to the user via views. The base
+  :class:`AbstractView` currently has one concrete implementation: the
+  :class:`ListView`.
+  
+    :doc:`api-kivy.uix.abstractview`,
+    :doc:`api-kivy.uix.listview`.
+
 ----
 '''