Update deprecated JSXTransformer and react-tools libraries

[nicknezis]

Some context can be found here.
https://reactjs.org/blog/2015/06/12/deprecating-jstransform-and-react-tools.html

Is your feature request related to a problem? Please describe.
Some of the Javascript libraries used are deprecated.

Describe the solution you'd like
The codebase should be updated to use modern and supported alternatives.

Describe alternatives you've considered
https://babeljs.io/ seems to have functionality that has supplanted the previous implementations.