RobLoach/jquery-once — pull request #16 by theodoreb (2014-10-15 01:51:13+00:00)
Title: Remove ability to call once() without a parameter

Code such as

```

// Now change the background color.
$('p').once().css('background-color', 'black');
// Change it again.
$('p').once().css('background-color', 'yellow');
```

Doesn't actually help anything. ID are required to control what's going on.

Related #15