Merge changes from branch development
Move to .user.js to support auto-install

Now going to this file in Chromium and Firefox (with Greasemonkey) will
prompt you to install it.
Merge pull request #36 from MarkTraceur/userscript-fix

Move to .user.js to support auto-install
Use relative URLs for loading resources

Should help with local development...
Merge pull request #49 from MarkTraceur/use-relative-urls

Use relative urls