Pull request. VRF totally adapted to 0.24.2 version of OpenNaaS.
New GUI used in the new demo.
More graphical using a javascript library (d3js) that allows to draw topologies and manipualte SVG and CSS.

The d3js configuration files are created in the javascript folder, inside folder named topology. For each view, is created a js file. A common js file allows to configure all the views with the same configuration parameters.
Merge branch 'master' of https://github.com/dana-i2cat/opennaas-routing-nfv