Separation of public/private APIs

Added

• Unit tests for the datasets and networks module were added.
• The DEFCoN model from the manuscript is located at defcon/resources/defcon_tf13.h5. It requires Python 3.6, TensorFlow 1.3, and Keras 2.0.8.

Changed

• Modules were separated into a public and private API. Private modules have names that begin with underscores; public modules do not.
• All source code was moved from the leb.defcon package to the defcon package.

Removed

• The function defcon.networks.FCN.max_count_to_density was removed because it was buggy, could not be made to work in an obvious way, and was likely not useful.

Initial release

The initial public release of DEFCoN.