POICollection updated to send correct facet params and parse response
Render separate facets

Still needs to be updated for when only one facet is included
Separate facet event for accessibility as types are handled differently
Serialize additional values to help style the SearchView facets
Minor style tweaks, disable filter button if no facets available
Capitalize accessibility facet titles
Merge pull request #17 from ox-it/updated-facetting

Updated facetting