Always encode query as utf8
Updated Search view to capture user specified facets
OCD
Pass multiple user specified facets to the Search service

With a default `type` facet also specified as a default kwarg
Updated Search representation to return multiple facets
Apply prefix to only the facet on 'type'
Remove additional filters from the Search View
Transform keys at service layer inbound (to solr) and outbound
Added new 'facet' curie link, include counts in response
Tests no longer apply
Updated nav_links to return a list of curies including 'facet'
Set the correct querystrings for urls returned in _links
Move key transforms to a class property (better encapsulation & testing)
Pass any additional arguments through to the HALPOISearchRepresentation

Used to create correct href's
Tests for qstring argument transforms
Docs for the facet curie
Updated tests on nav links to include new curie syntax / facet
Updated HALPOISearchRepresentation docstring
Merge pull request #58 from ox-it/user-specified-facetting

User specified facetting