Update gitignore and humans.txt, remove license

Add ruby-version file to let users know which version I’m using. Other
minor site updates
Update to hikari styles

Use hikari theme styles to update look of site. Modified theme for own
use. Removed old scss files and some styles
Update head and site config and fix layouts

Layout now uses something closer to hikari layouts
Remove blog page
Add hikari js

Add hikari js code with plans to remove most of it for own design