Fixed issue where Nested Form fields on different forms loaded on the same page did not initialize correctly.
Updated "gpnf_append_nested_forms_to_footer" to default to true if "gform_init_scripts_footer" is set to true.
Updated priority of GP_Nested_Forms:
utput_nested_forms_markup() to 21 to ensure it is output after jQuery.
Updated session cookie with COOKIEPATH, COOKIE_DOMAIN, and secure flag.