save ports to metadata, shouldComponentUpdate speedups #2
vertical center
window.graph for debugging
splitting graph from app and moving node move handlers to node with events bubbling up to tell graph to render
shrink long port label
drag groups #2
group setup  not
component name under label
fake svg tooltip on separate layer that doesn't scale #2
add tooltip
use -> instead of arrow
tooltip not over right edge
better hack for tooltip, batch wheel zooming
pass app ref down to node to access app current state, node name tooltip (only when node label hidden)
Ff does native tooltips on svg
Merge remote-tracking branch 'forresto/gh-pages' into gh-pages

Conflicts:
	react/the-graph.js
working with forresto's changes. trying forresto's tip about max width