Integrated analytics Oracle stats changes in UI,bug id is #1350680

    - Flowseries charts in VirtualMachine, Virtual Network details page and the Inter VN stats page(When we click on the links in the topology)
    - Earlier the time series charts are with 7 secs granularity and past 30mins now it is 30 secs granularity and past one hour data
    - Earlier two queries were issuing for the IN & Out stats now we are getting in same query
    - Added the last 1 hr tag where ever we are displaying the last one hour stats
Change-Id: I8afd5e6435b0f8e86046f3dbdb7202564254bf81

Conflicts:
	webroot/js/dashboard-utils.js