better rbm as mlp support
cleanup
new example
maintenance of default training algorithm--wasn't working anymore
type checking
black box examples
Merge pull request #227 from goodfeli/master

ICML contest examples
checks
implemented get_weights
added the iris dataset
cleaned up iris dataset
shuffle and split preprocessor
Merge pull request #228 from goodfeli/master

Iris dataset, shuffle and split preprocessor
Add a simple utility function for GCN.

This should be called by both the preprocessor and any other uses of
GCN.
remove debugging files
patch old pickle files
Moved GCN to expr.
Fix old test and add min_divisor test.
Improve global_contrast_normalize.
Update the preprocessor class.