Add configuration items to determine DNS records returned and sort order

.env.example

@@ -47,7 +47,7 @@ MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
 MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
 
 FIDO_DIR=fido
-FIDO_PACKET_KEEP=
+FIDO_PACKET_KEEP=false
 FIDO_STRICT=false
 
 FILESYSTEM_DISK=s3
@@ -58,6 +58,12 @@ AWS_ENDPOINT=
 AWS_DEFAULT_REGION=home
 AWS_USE_PATH_STYLE_ENDPOINT=true
 
-MATRIX_SERVER=
-MATRIX_AS_TOKEN=
-MATRIX_HS_TOKEN=
+#MATRIX_SERVER=
+#MATRIX_AS_TOKEN=
+#MATRIX_HS_TOKEN=
+
+#FIDO_DNS_NS=
+#FIDO_DNS_AAAA=
+#FIDO_DNS_ORDER_AAAA=
+#FIDO_DNS_A=
+#FIDO_DNS_ORDER_A=