Simplifies the installation process for nustar_pysolar and removes some some deprecated dependencies.
Updated the README files and added documentation via readthedocs (link on the README page). Note that lots of docstrings need to get fixed still, but it's at least usable.
Major thing is that this version contains an update HTML location to download the occultation files.
For now, I recommend starting in a completely fresh conda installation and download location for this repo to avoid any clashes with earlier versions.