- Added docstrings for all functions, classes, and methods.  Many are redundant with comments and many could be more explicit.
- Updated proprietary Hitachi correlation to include docstring
- Switched from hard-coded physical constants to those tabulated in scipy
- Removed unused FuelTemperatureCalculation class
- Added literature reference
- Added images
- Fixed a typo PecsCheck.py, introduced during the last commit
- Added another image
- Added acknowledgement logos
- Added another literature reference
- Added Sphinx-generated documentation and manual website