Minor change, created a global var representing our app called app,
will be used to add controllers and services.
Created a basic popover that displays a graph of the clicked object,
the grap and the popover are poorly written, I will refactor the angular side now.
Commiting so someone else can work on improving the graph at the same time.
Also, server is so slow, some sort of feedback should be displayed
to user while creating the graph.