Updated facetbrowser with functionality based on design suggestion. Choosen facets are grouped and can all be unselected at once. Amount of choosen facets won't have any effect on visible unselected facets.
Added posibility to choose how a facet is sorted when dispalyed in frontend
Added numeric option to facet name sorting
Proof of concept with show/hide additional facets
Upped the amount of visible facets
Added settings option so visible facet amount can be decided on facet settings page
Merge branch 'search-testing' into development