- Updated quadtreeToLayoutTree to reference the quadtree source node in each layout node.
- Updated exhibit-controller to handle report selected nodes in detailsBox when it received quadtreetree-nodeSelected events.
Updated reportSelectedNode to drop quadtreetree specific-stuff from node reports.
Fixed the problem of missing graph nodes for unset quadtree nodes.
- Updated idmaker to use only alpha characters so that generated ids are valid element ids. 
- Updated call to randomId to specify an id length.
Removed unused idmaker from quadtreetree.
Updated exampleQuadtree to expose setLabels method so that labels can be set on the nodes that are added after initial tree creation.
- Added setTimeout that adds more points to the quadtree after a delay.
- Converted several exposed vars in exhibitController to be only in local scope.
Updated exhibitController to add 50 points at a time every 4 seconds until 1000 points are added.