[WIP] Adds 'Find it' link to availability

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![image](https://cloud.githubusercontent.com/assets/302258/3860497/e58e535a-1f24-11e4-86aa-b9e97b1225e8.png)
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- [ ] Add tests
So am I to understand that we will put a stackmap link in for every item?  That could be a lot of Find it links.  @jvine is that the intention w/ the new design? (I think it was at the location level previously).