User Address Attribute Search Fixes

Should fix up most of #619

The new way didn't have a way to accommodate array type attributes (such as address). I added a "subAttribute" field to the filtering, where we pass in the specific part we want to filter on for that attribute key so they query builder actually can figure it out.

Also removed absolute positioning from the style on search labels. Hopefully nothing else broke here but it made the UI a little better. I'm not big on UI stuff so someone with a more keen sense for that can probably tidy it up a little better.
![image](https://cloud.githubusercontent.com/assets/1292766/3920631/86be993c-23b8-11e4-91bd-986e543a1420.png)