Unittests for dot
dot::layout returns node positions, no more traits
move all into layout.hh for now
Complete port of dot to bgl
Update YCM config
Remove debugging output from ranking
Fix bug in remove_edge
Refactor dot into order.hh, net_flow.hh and rank.hh
net_flow: Make delta adjustable
dot: port initial_order, use first rank
dot: compute x coord w/ net flow
Refactor x ordering/placing
Center graphview
qt: simple dijkstra routing
qt: cleanup routing impl.
dot: remove new unused dot impl.
qt: asynchronous route and layout impl.
qt: fix issue where no path are found
qt: fix arrow head and tail positioning
qt: anti alias edge drawing