quick fix to facet panel logic

Facet panel headings fix. Should not change color on collapsed but rather only on active facet or not. My misunderstanding on original PR

![screen shot 2014-07-03 at 2 56 08 pm](https://cloud.githubusercontent.com/assets/1656824/3474424/bb891520-02e3-11e4-94cc-886e869f4f29.png)