remove button grey style on members toggle

Removes the grey background on the toggle members button on vote lists.

* removes non-data-link
* lightens non data side of the screen.

After
![screen shot 2014-09-29 at 11 17 54 am](https://cloud.githubusercontent.com/assets/1239550/4436443/bbe02a68-4776-11e4-91eb-46e33ca7fc4a.png)

Before
![screen shot 2014-09-29 at 11 18 28 am](https://cloud.githubusercontent.com/assets/1239550/4436446/d2415818-4776-11e4-9188-7a9706d8a0f1.png)