update to blacklight 4.7+
Use new-style params handling
test against Rails 4.x
update facet_limit to use facet_display_value and render_facet_count
Use blacklight 5 pre4
Render tags so they aren't escaped by Rails
Use the solr documents that have all the fields indexed (especially title_t)
remove facet_field_labels no longer in BL 5.

Replace with facet_field_label(field), introduced in 5.1. So require at least BL 5.1.
Merge branch 'master' into blacklight5

Conflicts:
	lib/generators/blacklight_advanced_search/templates/_search_form.html.erb
reasonable bootstrap3 display for adv search form
sidebar selected inclusive facets for bl5
no colon needed after field label
mute 'OR' in inclusive constraint, for clarity
adv. inclusive facets trigger facet-active display

for relevant facet. Including hacky workaround for
projectblacklight/blacklight#790
avoid hacking assumption on @advanced_query ivar, now it works properly on adv search form too
some styles to group 'any' constraints on search results.

Def not ideal, but it's something.
search form remember any/all choice
weight 500 matches bootstrap better than just bold
use search_history class to get proper styles on content we're re-using from search history area
JS no longer applies to blacklight5 version