Color work continues
- sketches/colormap.html:
  - Added tests to colormap
  - More maps
- src/color.coffee
  - Rearrange for clarity
  - added short hex string format
  - More typedColor work
  - start on non-typed colormaps
- util: fixed ramp
Color, now ready for integration with rest of system
- Reorganize module layout for better docs/understanding
- formal color types: css, pixel, typed
- prototypal colormaps: convert any array of valid colors to colormap
- update sketches/colormap.html for new Color module
- integrate dataMaps and colorMaps; toss a lot of redundant code
Merge branch 'master' into gh-pages