Chris Van Hooser's fix for addBefore property updating the children array, but not updating the controls array with the same ordering

Enyo-DCO-1.1-Signed-Off-By: Ben Combee (ben.combee@lge.com)
Merge pull request #290 from enyojs/fix-addBefore

Chris Van Hooser's fix for addBefore property updating the children arra...