FacetWP 4.3

-Important: please update the following add-ons: [Alpha, Map Facet, Time Since]
-New: `facetwp/ajax_settings` JS hook (to tweak ajax settings)
-New: `facetwp/set_options/autocomplete` JS hook (to tweak autocomplete requests)
-Improved: automatic formatting of number range inputs
-Fix: search facet auto-refresh issue
-Fix: issue with Listable + fSelect facets
-Fix: Norwegian translation

• New: proximity facets now support a radius slider (HTML5 range input)
• New: search facets now have an "Auto refresh" setting
• Improved: modified the facetwp_index table structure for greater efficiency
• Improved: smarter autocomplete search (show only relevant choices)
• Improved: (hierarhical checkboxes) automatically expand children if a parent choice is selected
• Improved: facet type registration has moved to FWP()->helper->get_facet_types()
• Improved: use wp_send_json when possible (props @mgratch)
• Improved: freeze fSelect choices during a refresh
• Fix: fSelect choices incorrect when in "AND" mode
• Fix: slider rendered incorrectly when using back/forward buttons
• Fix: hide the "Soft limit" setting for hierarchical checkboxes
• Updated to flatpickr v4
• Updated translations

• New: the "Re-index" button will glow when re-indexing is needed
• New: added "Copy shortcode" button
• Improved: minified main front scripts
• Improved: fSelect styling (wrap long choice labels)
• Tweak: switched SWP_Query argument from "load_posts" to "fields"