John-Lluch/SWRevealViewController — pull request #233 by jackwu95 (2014-04-14 18:49:00+00:00)
Title: Fix right area being draggable when only rear VC is set

Disallow dragging border from the right if only rear controller is set, and vise versa when right is set but not rear.

Currently, if you set draggableBorderWidth and only one of the two rear controllers, you can drag from the opposite side as well.