Fixed issue where :sum merge tag was not working correctly on AJAX-enabled forms with multiple Nested Form fields.
Fixed notice generated by attempting to access $form as an object.
Fixed security issue where arbitrary entry data could be viewed in a Nested Form field.
Added support for gpnf_bypass_entry_permissions filter to allow advanced users to determine if entry permissions should be bypassed when populating entries into a Nested Form field.
Updated gpnf_template_args docblock with addition of the "actions" property and removal of the "related_entries_link" property.
Fixed up {Parent:__} merge tag to work with paginated child forms
Fixed issue where saving Nested Form field without fields in the Form Editor would cause a PHP notice/error
