Polya

What's changed
- Fixed internal use of ULTRA

What's changed
- Fixed the importlib and requests bugs

What's changed
- Replaced soda json output with html output

What's changed
- Fixed a bug that causes a crash when the --soda flag isn't passed

What's changed
- Merged in the changes for the updated soda json
- Removed the now unnecessary extra soda json output

What's Changed

* Roll back to Python 3.7 by glesica in https://github.com/TravisWheelerLab/polyA/pull/78
* Parse the tool from the sto file by glesica in https://github.com/TravisWheelerLab/polyA/pull/77
* Update tutorial and format to rst by Audreym98 in https://github.com/TravisWheelerLab/polyA/pull/80
* Spruce up docs by Audreym98 in https://github.com/TravisWheelerLab/polyA/pull/81
* Transition penalty by Audreym98 in https://github.com/TravisWheelerLab/polyA/pull/84
* Update converter by Audreym98 in https://github.com/TravisWheelerLab/polyA/pull/82
* Update converters to take output filenames by glesica in https://github.com/TravisWheelerLab/polyA/pull/85
* Bump to 1.2.0 by glesica in https://github.com/TravisWheelerLab/polyA/pull/86

**Full Changelog**: https://github.com/TravisWheelerLab/polyA/compare/v1.1.0...v1.2.0