dbushell/Nestable — pull request #18 by zgldh (2012-07-30 06:24:13+00:00)
Title: button class & dragStop function

1.	button should have class "dd-toggle-btn"
2. If we use this.dragEl.html(), the values of INPUT, TEXTAREA or SELECT
will lost.
So we should change it to this.dragEl.children()