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

Author: amueller

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/datasets/labeled_faces.rst renamed to doc/datasets/labeled_faces.txt

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

doc/datasets/mldata.rst renamed to doc/datasets/mldata.txt

@@ -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`) .