Explain Query - Running notification, pulled ng-app ID off body element

![explain_query___acs_aem_tools](https://cloud.githubusercontent.com/assets/1451868/4894876/eeb20174-63db-11e4-9647-ac3f67a5ca57.png)

Added simple notification when application is running (waiting on explanation from server) so it is clear that EQ is doing something. 

Used opportunity to move the ng-app ID off the body tag and onto a wrapping div, allowing for injection of other ng apps.