Fixed minor doc errors and did a little PEP8 cleanup
Minor doc updates
yaml_tutorial doc updates
Tutorial and documentation updates
formatting and better errror message
Softmax.cost_matrix
formatting
support old pickle files
type checking
CIFAR-10 no augmentation test set script
pep8
type checking
removed TODO
Merge pull request #451 from goodfeli/master

CIFAR-10 maxout result, and small miscellaneous changes
Merge pull request #446 from yosinski/master

Fixed minor doc errors and did a little PEP8 cleanup
Merge pull request #447 from yosinski/dev

Assorted documentation and tutorial updates