Fix pagination controls, move mixin to common app, fix pagination invocation on all views, and other random bug fixes

staticfiles/admin/js/popup_response.js

@@ -0,0 +1,23 @@
+/*global opener */
+
+'use strict';
+{
+    try {
+        const initData = JSON.parse(document.getElementById('django-admin-popup-response-constants').dataset.popupResponse);
+
+        switch (initData.action) {
+            case 'change':
+                window.parent.dismissChangeRelatedObjectPopup(initData.value, initData.obj, initData.new_value);
+                break;
+            case 'delete':
+                window.parent.dismissDeleteRelatedObjectPopup(initData.value);
+                break;
+            default:
+                window.parent.dismissAddRelatedObjectPopup(initData.value, initData.obj);
+                break;
+        }
+
+    } catch (e) {
+        window.parent.fallbackDismissChangeRelatedObjectPopup(e);
+    }
+}