Merge pull request #14 from rajreddy/webui

Following items are added/corrected.
Changing the exposed variable more_attr to more_attributes
Merge pull request #15 from rajreddy/more_attr

Changing the exposed variable more_attr to more_attributes
Added the two traffic charts from the prospective of either nodes in the details tab which will be displayed on click of the link between the prouter and prouter

Change-Id: Ibd3fce87854a2709f10a58282c50e889d220fb74
Merge pull request #16 from vishnuvv/Underlay

Added the two traffic charts from the prospective of either nodes in the...
Added basic tooltip info on hovering vrouter and vm.