improvement: add SAR currency to Google Merchant Center
improvement: add default Unit Pricing Measure to Google Merchant Center
improvement: only update max_execution_time on plugin requests, don't modify it globally
bugfix: unable to export WooCommerce customers to XML
bugfix: error with empty strings at the beginning or end of function calls
bugfix: ACF date field not parsed correctly with some custom date formats
bugfix: unable to export image galleries inside ACF flexible content fields to XML
bugfix: time-based export filters should use GMT not server time
