Merge pull request #11 from betaveros/lt-gt-entity

Replace < and > with entity references
Merge pull request #12 from betaveros/adaptive-insertion

Make insertion sort adaptive and stable
Merge pull request #13 from betaveros/update-checked

Update VA by checkbox statuses on document ready
Update link to live version

This has been a long time coming.
Add "lights off" color scheme and tweak colors

* Allow the user to select a dark color scheme with a check box.
* Change the default 'compare' color to yellow (rgb(200,200,0)), a
  previously unused part of the color spectrum, for better contrast and
  visibility.
Color links in dark theme
Clarify this is a fork on GitHub Pages