Display the subject info in a simple manner (radial_graph).
Show the course_info also in the rttree
Add tooltips to the subjects name nodes in the graph.
Use cursor: pointer for the graph's nodes.
Show the course_info to the right of the graph + list the courses when none is selected.
Resize the graph when needed.
Use larger fonts/graphs on larger displays.
Add ng-show="courses" to the course_info include to prevent glitches
Trying to position the graph and the course info so that they look ok.
Merge branch 'master' into gh-pages