Gravity Perks - eCommerce Fields 1.2.30

Fixed markup and styling of Order header in {all_fields} merge tag.

Fixed dependency on jQuery.migrate that has been removed as of WordPress 5.5.
Fixed issue with Gravity Forms 2.5 where markup was being rendered in the field label.
Added $modifiers as an 8th parameter to the gpecf_order_sumary_markup filter.
Added acceptance tests. (#5)
Added 14 new acceptance tests.

Fixed notices generated when updating an entry (via the GF entry update screen) with a calculation-enabled field containing a GPECF merge tag