Update backgroundIframe references for dijit. Refs #3659,#2727 
Update backgroundIframe references for dijit. Refs #3659,#2727 

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@9739 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful