insert rebellions notice above votes table (NOT DYNAMIC)

This adds a small notice of rebellions for the division above the votes table. It's not dynamic yet and will need @henare or @mlandauer to create the loop of rebellion members. [See TODO](https://github.com/openaustralia/publicwhip/compare/rebel_voters_notice?expand=1#diff-9f463be98c3d3382ecaf522b360e88b3R17).

![screen shot 2014-10-15 at 11 29 10 am](https://cloud.githubusercontent.com/assets/1239550/4638903/57fe5e8c-5402-11e4-8ee0-c0cd6445453b.png)
![screen shot 2014-10-15 at 11 25 56 am](https://cloud.githubusercontent.com/assets/1239550/4638899/458fa530-5402-11e4-927c-a77c146e44dc.png)