Fix bug that would delete languages without reinstalling
Add scaffolding for updating
Remove Single Tax UI plugin and move to CMB metabox for language selection
Refactor the editor.js into functions

We can migrate these functions out into a separate object a la wpLinks at some point if we want
Fix notice appearing on gistpens
Initial switch to Prism
Add version option when plugin is activated
wheee whitespace
Refactor content manipulation into helper class
Set up migration for new language support and dropped language support
Views don't belong in assets...
Add line numbers
Move language class to code element where it belongs
Add line-highlighting with "highlight" in shortcode
Add "gistpen-{$post_slug}" to <pre> id for line linking
Beginning of option page

* Create option page
* Select syntax highlighting theme
* On-page demo
Add line number enable/disable
Fix bug with display on options screen
Merge branch 'feature/options-page' into develop

* feature/options-page:
  Fix bug with display on options screen
  Add line number enable/disable
  Beginning of option page
Actually fix line number display bug