enyojs/enyo — pull request #512 by unwiredben (2013-10-22 20:44:19+00:00)
Title: Clean up XHR refs to avoid possible circular refs

Also adds destroy() methods for enyo.Async and enyo.Ajax to
clean up a XHR reference and a timer reference that could be
orphaned.

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)