Tweaks

Noticed it was filled with jshint warnings so I fixed all those, I left unused variables untouched. Also included some other tweaks and locale files. You may merge all or cherry-pick those you like.

Also add tooltip support that may be activated with:

```js
$('[data-fx~=tooltip]').tooltip();
```

This can probably be applied in other ways.

Thank for a sweet minimalistic markdown editor, I'm using it with a Rails project.