* FIX: compatibility the Map Listing with the JetSmartFilters
* ADD: allow to calculate Dynamic Functions values by related posts; * UPD: API method to get meta fields by context; * FIX: Crocoblock/suggestions#3310; * FIX: Crocoblock/suggestions#3068; * FIX: Crocoblock/suggestions#3423.
* FIX: PHP 7.0.x compatibility.