Fix for bug #13

Manage URL - http://rdn-test.appspot.com/#PRESENTATION_MANAGE/id=c5ffc4d7-c299-498b-ae8d-3009a855dc24/company=b428b4e8-c8b9-41d5-8a10-b4193c789443
Preview URL - http://viewer-test.appspot.com/Viewer.html?type=presentation&id=c5ffc4d7-c299-498b-ae8d-3009a855dc24&showui=false

@donnapep Please review. I also added a lot of code cleanup in my last commit of this PR (jshint, jslint, inspections) as I had not done so previously with this widget. To review the exact bug fix, review the second commit entitled "Fix to bug involving dummyVar".