Fix some color names (prefer gray over grey) and fix some typos in the color name hex mappings.
Attempt to replicate the sass 3.2 behavior regarding color formatting.
Merge branch 'master' into feature/colors
Merge remote-tracking branch 'upstream/master' into feature/colors
Now targeting sass 3.4.4 behavior for color format.
Merge remote-tracking branch 'upstream/master' into feature/colors
Merge branch 'DealerDotCom-feature/colors't push origin master