Testing a new File System object
New flat style graph logs

- as suggested by @mrdoob
- also trying out fixed with columns
Remove three.js tree mixin example
Add fs object

- this emulates a virtual fs system directories
- uses do.js for event handling
- update force_directed.html to use this new class
Experimenting with different graph color schemes
Force directed handling of files and directories graph nodes
Experimenting with a children-estimatation based strategy.

- Reduce calculations to folders only
- May some what improve performance
- Estimates other behavior like mass based repels
- and dynamic link lengths
- Entire system seems less stable
- but seems to be slightly more interesting
Decouple rendering logic into canvas_rendering.js
Tweaking layout
Added three.js integrated rendering

- for 60fps rendering
- added whole bunch of three.js dependencies
- uses ParticleGeometry from crayon.js for rendering billboards
Make force directed webgl graph display links
Minor layout tweaks
Add mouse handling detection for canvas file graphs
Add flow.html for stepping thru simulation.

- Whole bunch of other fixes
Add nicer curved labels