TODO
names of tutorials
clarified TODO
factored dropout into a cost
added a doc todo
removed a print statement
comments on tutorials
converted cifar10 maxout yaml file to new dropout interface
got rid of dropout in MLP class
docstring for cost_from_X
deprecation warning for dense_binary_dbm
updated unit tests and mnist maxout config file to use new dropout
interface
fixed comment
updated comment with note about how future maintenance should be done
removed test that was specific to the old interface
added some todos
updated unit test for grbm_smd example to use new path
fixed check on dropout arguments
add __init__.py files to make sure all tests get executed
gave deprecation warnings to import links