WooCommerce Product Search 6.1.0

* Added an interactive price slider to the price filter (supported by widget, shortcode and API function).
* Added options to display the price filter with slider and/or input fields.
* Fixed and improved overlapping request handling for live search and filter actions.
* Added filter reset widget, shortcode and API functions.
* Improved UX using page cursor progress indicator while filter requests are loading.
* Improved handling of filter requests in case of request error to bring the UI elements back to a consistent state.
* Fixed indicating the parent term for the product category filter had no effect.
* Fixed the indexer's memory limit check when the configuration option is set to unlimited or doesn't exist.
* Improved initial default work cycle so it won't exceed the idle cycle by default and also checks max_input_time.
* Added check for max_input_time during indexing.
* Added the woocommerce_product_search_indexer_limit filter.
* Added the woocommerce_product_search_indexer_check_memory_limit filter.
* Added the woocommerce_product_search_indexer_check_execution_limit filter.
* Suppressed warnings from empty indexing requests (e.g. when a product has no related tags).
* Fixed back end search to include out of stock products and those that are in draft or pending.
* Fixed an issue when "Enable AJAX add to cart buttons on archives" was disabled, clicking the button from within live results would lead to a blank page showing 0.
* Added the option to render the product category filters as select/dropdown.
* Added the option to render the product attribute filters as select/dropdown.
* Added the woocommerce_product_search_term_node_select_apply_padding filter.
* Added the woocommerce_product_search_term_node_select_padding_string filter.
* Added the woocommerce_product_search_term_node_select_padding filter.

* Added parameters to the live search field form to handle more restrictive requests.
* Fixed and updated the more link generated for the live search field to allot to enable or disable any parameters.
* Added the condition to also act when searching along with filter search when processing the query, avoids showing all results when none should be included for search outside of filtering.
* Fixed the live search filter form so it also includes the title, excerpt, content and sku flags to allow for more restrictive search.
* Improved acting on missing resources to reenable filter fields to have at least minimal functionality.
* Added missing filter flags on ordering form update.
* Fixed sorting with multiple filter attributes would only use one attribute.
* Fixed a syntax error in variable initialization of the ixwpsf.attributeFilterItemOnClick function.
* Fixed cleaning up ampersands in product filter URL handling.

* Fixed product category order by Term order had no effect.
* Fixed product attribute order by Term order had no effect.
* Improved term product counts to reflect current filtering context.
* Added the woocommerce_product_search_get_terms_filter_counts filter.
* Added the woocommerce_product_search_term_walker_apply_get_term_count filter.