Merge pull request #9 from Juniper/master

Pull changes from Juniper/web-controller to absingla/web-controller
Merge pull request #11 from Juniper/master

Pull changes from Juniper/web-controller to absingla/web-controller
Correct url to get the server-utc-time while plotting cpu/mem charts.
Merge pull request #50 from absingla/master

Fix the url to get server-utc-time for cpu/mem chart