• Moved interpolation methods to d3-interpolate.
• Optimize rgb.toString.

• Define d3-color module (and d3_color global), not color.

• Adjusted the package.json definition for npm users.

• 100% for a RGB channel is now exactly 255, not 254.99999999999997.

• Remove Map polyfill.

• Fix prototype initialization.

• Don’t force RGB channel values to be integers.

• Add color.displayable.
• Do not clamp channel values when creating HSL and RGB colors.

Initial release!