First working version of 'navigating the TM structure using the graph'
Some refactoring on graph service
major changes to folder-metadata query view
moved library query to library-all
created new library query which just shows the library+folder
added ability to pass a parameter from the url into a query (via the controller)
couple improvements on Vis-Edge, Vis-Graph and Vis-Node helper classes
new view 'graph-with-viewer.jade' which ads support to opening an TM article when clicked on an Article graph node