yields/sortable — pull request #10 by juliangruber (2013-10-01 12:09:23+00:00)
Title: prevent moving links out of their drag containers

Without this fix, if you had dom like this:

```html

foo

bar

```

and then dragged the first link below the second one, you had dom like this:

```html

bar

foo

```

This makes sure that you're always dealing with the most top level possible element.