New Pylearn2 wrappers and an example
Less redudancy

The input variables of the cost computation graph provide
enough information with their names to set the model's data
specification.
Solution for resuming training
PEP8
Per-batch monitoring for Pylearn2 wrapping
Small fixes before merging
Fix the case with no learning rule
Merge pull request #60 from rizar/new_pylearn2_wrappers

New Pylearn2 wrappers and an example