added test code for norbsmall and foveated norb.
Added tests for mnistplus.py, and several bugs in that file fixed.
PEP8 fix
Added documents for the two file
adjust line limit
Enable more tests on Travis
Use the RNG we created, not the default numpy one
Fix in random_dense_design_matrix without labels
Fix "dictionary changed size during iteration" in python 3
fix for quickstart on python3
Add documentation for the 'axes' argument of DenseDesignMatrix.
Use a nicer error message if the user provides a topo_view with
the wrong number of dimensions.
Fix docstring formatting
Merge pull request #1269 from bartvm/matplotlib

Enable more tests on Travis
Merge pull request #1291 from icoxfog417/fix_for_py3_quickstart

fix for quickstart on python3
Merge pull request #1293 from julienr/topo_view_doc_fixes

Adds documentation for the 'axes' argument of DenseDesignMatrix.
Changed the way we construct DenseDesignMatrix
PEP8 respect
Merge pull request #1280 from hantek/add_test_datasets

Added test code for norbsmall and foveated norb. More on the way.
Remove costs/autoencoder.py from pep8 whitelist