Fixed #17378 - Added a flattened index for class-based views.

Thanks Preston Holmes for the patch.

docs/index.txt

@@ -108,7 +108,8 @@ to know about views via the links below:
   :doc:`Built-in display views <topics/class-based-views/generic-display>` |
   :doc:`Built-in editing views <topics/class-based-views/generic-editing>` |
   :doc:`Using mixins <topics/class-based-views/mixins>` |
-  :doc:`API reference <ref/class-based-views/index>`
+  :doc:`API reference <ref/class-based-views/index>` |
+  :doc:`Flattened index<ref/class-based-views/flattened-index>`
 
 * **Advanced:**
   :doc:`Generating CSV <howto/outputting-csv>` |

docs/ref/class-based-views/index.txt

@@ -13,6 +13,7 @@ Class-based views API reference. For introductory material, see
    generic-editing
    generic-date-based
    mixins
+   flattened-index
 
 Specification
 -------------