BDNE Visualization Version 1 - Update 1

- Added S(n) < 0 highlights
- Added GUI option to pick and choose which P(xn) values to display.
- Fixed some simple bugs ; made some simple adjustments
- Updated/corrected the data files
- Began numbered updates ; this is the start so it will be Update 1

- Encountered problem with running on a Linux machine. Will try to fix
problem with matplotlib as soon as possible.