refresh list toggle (bug 1103199)

This is just the visual portion. The new preview trays and relevant JS are not yet ready.

![](https://s3.amazonaws.com/f.cl.ly/items/2s3c2G1k2Z3Y2M3p2i0Q/Image%202014-12-18%20at%203.30.09%20PM.png)

![](https://s3.amazonaws.com/f.cl.ly/items/3x0y42003K1p23282401/Image%202014-12-18%20at%203.32.10%20PM.png)