Update compatibility with django-streamfield.

admin_interface/static/streamfield/admin_popup_response.js

@@ -0,0 +1,24 @@
+// IMPORTANT: used by django-streamfield >= 2.0.0
+
+(function() {
+
+    'use strict';
+
+    var windowRef = window;
+    var openerRef = windowRef.parent;
+
+    var initData = JSON.parse(document.getElementById('django-admin-popup-response-constants').dataset.popupResponse);
+    switch (initData.action) {
+        case 'change':
+            openerRef.streamapps[initData.app_id].updateBlock(initData.block_id, initData.instance_id);
+            openerRef.dismissRelatedObjectModal();
+            break;
+        case 'delete':
+            break;
+        default:
+            openerRef.streamapps[initData.app_id].updateBlock(initData.block_id, initData.instance_id);
+            openerRef.dismissRelatedObjectModal();
+            break;
+    }
+
+})();

admin_interface/static/streamfield/js/admin_popup_response.js

@@ -1,3 +1,5 @@
+// IMPORTANT: used by django-streamfield >= 2.0.0
+
 (function() {
 
     'use strict';