Change check used to only refresh bindings to or from a controller to al...

...so look at bindings from a controller's children. This fixes some binding problems seen in internal tests after change d4914e48b43b92198cdd7a41ff37a91ec39258ee.

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)

(NOTE: I know regex isn't the fastest way to do this... just wanted to start conversation about this problem)