Simplisafe-python

- Made 3.6 the minimum accepted version of Python

- **BREAKING CHANGE**: Convert library to use `asyncio`
- Added full test suite (with 100% coverage)
- Complete overhaul of documentation
- Added Makefile with common tasks
- Added Pipfile for dependency management
- Added CodeClimate and CodeCov badging/tracking
- Updated `setup.py` to common standard
- Added contribution instructions
- Added author recognition

* Raise exception when setup doesn't complete