Add graph options to Timeline demo
Regenerate graphs when needed
Adding filenames data file to make timelin demo work for now
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