Use tempfile.getttempdir for downloads.
Fix definition order for .k elements on classifier and regressor. Return hidden unit activations in addition to output when __call__ing the network with an input. Fix sign of error in regressor.
Add options for adding noise to input and/or hidden activity. Also, pickle weights and biases separately.
Add command-line flags for injecting noise. Also, rename --activity-l[12] to --hidden-l[12].
Return unlabeled data for the autoencoder as a straight array.
Bump version.