Remove old translation files.
Version bump to 0.2.0-alpha-1.
Completely recode, well, pretty much the entire thing.
Make sure to include the sidebar file.
Move translations to the `languages` folder.
Move stylesheets to the `css` folder.
Move scripts to the `js` folder.
Update references to the scripts and styles files.
Correct reference to `css` folder.
Update the HTML and add Schema.org support.
Rename `panel.css` to `sliding-panel.css` and `panel.js` to `sliding-panel.js`.