Fix emberApp's query selector (#730)
Fix emberApp's query selector (#730)

The applicationView's selector was hard coded to `body > .ember-view`,
this does not work for applications that are not using body as their
rootElement. We need to respect rootElement.
teddyzeenny/ember-extension,emberjs/ember-inspector,teddyzeenny/ember-extension,sivakumar-kailasam/ember-inspector,sly7-7/ember-inspector,emberjs/ember-inspector,teddyzeenny/ember-inspector,sly7-7/ember-inspector,sivakumar-kailasam/ember-inspector,teddyzeenny/ember-inspector,cibernox/ember-inspector,cibernox/ember-inspector