poi_maps instead of poi-maps

Was causing not so nice things :point_down: 
![screen shot 2014-11-12 at 4 31 01 pm](https://cloud.githubusercontent.com/assets/2614324/5019946/9e15b6ac-6a89-11e4-9d72-683dbcbfd011.png)

Verify: 
1  Run rizzo and visit `/styleguide/ui-components/poi-list`
2  Did it :bomb: ? 
3  If not it's :+1: