Gray and primary blue color systematic name variables

Fixes #61 with systematic color names. Should not contain any noticeable color changes. Another round of removing "duplicate" colors needs to occur with another release.

Beginning palette:
![screenshot 2014-12-08 11 39 08](https://cloud.githubusercontent.com/assets/1290832/5346089/d31f23c2-7eea-11e4-94f6-b5a6f4b3b977.png)

Ending palette:
![screenshot 2014-12-08 15 00 29](https://cloud.githubusercontent.com/assets/1290832/5346102/f919e314-7eea-11e4-8de8-4447be55d49e.png)