Merge commit '3a9bfe851bb0ea73cd5d811c6b7ab7e7bd497ef3' into hierarchical-facets3

Conflicts:
	themes/bootprint3/css/compiled.css
	themes/bootstrap3/css/compiled.css
Display only the current facet level in a hierarchical facet tree and strip leading level number and trailing slash from the list of applied hierarchical facets. Added default value to the optional paramArray parameter in UrlQueryHelper->addFilter.
Added support for displaying format nicely for Solr records when format is a hierarchical facet.
Added support for hierarchical facets in home page and advanced search page. Refactored hierarchical facet functions to a separate helper class and moved settings to a more sensible location in facets.ini.
Merge commit '28c7ac9a14de8f282280ef5490c1d2e184186335' into hierarchical-facets3
Added FacetHelper class that was missing from the previous commit.
Merge branch 'hierarchical-facets3'

Conflicts:
	themes/bootprint3/css/compiled.css
	themes/bootstrap3/css/compiled.css