Zenodo release

Release to trigger DOI creation on Zenodo. No changes to code. Minor update to Readme.

Fix for setup.py

Fixed mistake in setup.py that caused pumpy to not install.

Packaged for PyPI

Now packaged and uploaded to PyPI so you can install by running pip install pumpy.

Bug fix

Fixed issue with verification that pump was working with PHD2000.

Docstrings, tidying, exceptions

• Code has been significantly tidied up to conform better with PEP 8.
• Added docstrings to classes and methods.
• Exceptions now raised whenever something unexpected happens.