License mentioned in `setup.py` does not match license in repository

[FRidh]

[bluszcak44]

@FRidh Can I work on this? It would be my first PR for OSS!

For clarification, I'm assuming just change the setup_app.py to reflect Apache 2.0

[bisguzar]

@bluszcak44 go on! It's how open source works. just reference this issue on your PR