Dragger option not honored when drawer is open

[Justin Russell]

If you initialize your snapper with the dragger option you will indeed not be able to drag your drawer open using any other element. However, once the drawer is open you can then drag anywhere on the content element.

Example:
http://jsbin.com/tulavo/1

Code:
http://jsbin.com/tulavo/1/edit

Steps to reproduce:

1. Drag the drawer open using the navbar (e.g. reveal left drawer)
2. With drawer open drag content (not navbar) to open drawer on the other side (e.g. right drawer).