Fix for GraphNode.keep/drop. Looks like it now needs
a *global* reference for it to work. IIRC this used to
work with local references, but memory fails me.
Moved jsnode to its own file.
Renamed noteOff -> stop.
Fixed log level comparison. Better to have <= instead of <.
Added models directory and so new dependencies arise.
Bugfix to keep/drop to maintain *global* references to the preserved nodes.
Updated demo.html for this branch
Split models.js into separate files.
Added LICENSE.md