different way of backproping cnn
preprocess fix
adding tensor constants
rectified linear units
updating gitignore to exclude virtualenv
renaming some functions; removing state
new input layer type
input tensor type
adding factory functions
tensor types
updating included files
removing state variable and moved factory function
removed state and model; better support for higher
dimensional inputs
feature map layer and conv layer
pooling layer
fixed pooling layer forward pass
neural layer syntax fixes
conv layer fixes
hidden layer factory fixes
type fix