Change tabs to spaces in data.tile.js
Build--must have been missed in an earlier commit
Split link, links, agent, agents, patch, patches, animator, and model apart
Replace @ with window and u with @
Updated gulpfile
Build
Updated readme
Merge pull request #59 from backspaces/separate-files

Separate files: looks good, tried on all models and several test hacks of mine. Cool!
Cleanup for es6:
- Remove requestAnimFrame and Array.indexOf shims from util
- Remove "root" from util, use "window" in Model debug fcn
- Update animator to use "requestAnimationFrame"
- Atom: removed many trailing blanks