API, simplified class config, and major refactor

• There is now a simple REST API available. We haven't written the documentation yet, but you can see how it works on the PR, (thanks @jan-xyz).

• We vastly simplified the model configuration, which naturally led to a cleaner codebase, among other style improvements (thanks @jwayne).

Bug fixes

• Fix Keras loading issues

• Check tensorflow installation before installing

Initial Release

v0.1.1

initial commit