Update cnn.py

Added Licence

Update README.md

Updated readme

updated implementation

Attempt to add weight constraints properly

remove break in cv

Added clip norm penalties in final layer

Updated cnn removed additional hidden layer

Class predictions now converted to cpu before numpy when running on gpu

small updated. Model not training

Test_x now converted to torch tensor

Modified makefile

Added makefile for donwloading data

Finished main script. Now test