DOC Insert hidden toctree, mv "included" files from rst to txt

doc/datasets/index.rst

@@ -171,11 +171,11 @@ features::
  _`Faster API-compatible implementation`: https://github.com/mblondel/svmlight-loader
 
 
-.. include:: olivetti_faces.rst 
+.. include:: olivetti_faces.txt 
 
-.. include:: twenty_newsgroups.rst
+.. include:: twenty_newsgroups.txt
 
-.. include:: mldata.rst
+.. include:: mldata.txt
 
-.. include:: labeled_faces.rst
+.. include:: labeled_faces.txt
 

doc/index.rst

@@ -189,3 +189,9 @@ Development
    developers/utilities
    developers/debugging
    about
+
+.. toctree::
+   :hidden:
+
+   support
+   whats_new

examples/decomposition/plot_faces_decomposition.py

@@ -3,7 +3,7 @@
 Faces dataset decompositions
 ============================
 
-This example applies to :doc:`/datasets/olivetti_faces` different
+This example applies to :ref:`labeled_faces_in_the_wild` different
 unsupervised matrix decomposition (dimension reduction) methods  from the
 module :py:mod:`sklearn.decomposition` (see the documentation
 chapter :ref:`decompositions`) .