Jupyterthemes

- fixed attribute and property syntax highlighting
- removed 'TeX' as preferred mathjax font

- [PR 102](https://github.com/dunovank/jupyter-themes/pull/102) submitted by [pussinboot](https://github.com/pussinboot) fixed font installation [issue 71](https://github.com/dunovank/jupyter-themes/issues/71)

-removed numpy dependency ([meowklaski](https://github.com/meowklaski) : [PR 97](https://github.com/dunovank/jupyter-themes/pull/97))

-fixed linenumbers in onedork theme

-add solarized light theme ([svendx4f](https://github.com/svendx4f): [PR 84](https://github.com/dunovank/jupyter-themes/pull/84))
-fixed bug that prevented theme reset
-fixed bug that prevented cursor settings from being applied
-made upload button visible on main page

* minor bug fixes and thematic adjustments