added test code for norbsmall and foveated norb.
Added tests for mnistplus.py, and several bugs in that file fixed.
PEP8 fix
fixed `input_shape` error
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
Merge pull request #1287 from jych/master_jych

fixed `input_shape` error
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.