Fixed bug which occured when running the tests in datasets/tests/test_hdf5.py.
Made error message more descriptive. Added a few comments.
Fixed Pep8
Small fix to string.
Moved comment to location where it was more generally applicable.
Maxout L1 weight decay: T.abs doesn't exist.
The correct name it T.abs_

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Fixed CompositeLayer documentation
Added input_source attribute to MLP class to allow for multiple inputs
Updated VectorSpacesDataset
Merge pull request #976 from bartvm/composite_layer_doc_fix

Fixed CompositeLayer documentation
Added test for multiple inputs
Fixed composite layer test to include sources for composite input
fixed is_numeric_batch() to recognize CudaNdarrays as being numeric batches
Fix file format.
Use direct import
Remove a warning from a test ast pylearn2 warn when save_path isn't used
Add a test for Theano that depend on pylearn2 stuff.
cache the cifar 10 datasets
Don't load TFD too many times before each test. Keep only 1 dataset version in ram at a time.

setUp() is called before each tests.
Don't keep all loaded datasets in ram.