Vue Attract: Sort/filterable table based on Vue

Initial commit implementing sortable and filterable tables for attract
using Vue.

src/scripts/js/es6/common/vuecomponents/mixins/UnitOfWorkTracker.js

@@ -42,7 +42,15 @@ var UnitOfWorkTracker = {
     methods: {
         unitOfWork(promise) {
             this.unitOfWorkBegin();
-            return promise.always(this.unitOfWorkDone);
+            if (promise.always) {
+                // jQuery Promise
+                return promise.always(this.unitOfWorkDone);
+            }
+            if (promise.finally) {
+                // Native js Promise
+                return promise.finally(this.unitOfWorkDone);
+            }
+            throw Error('Unsupported promise type');
         },
         unitOfWorkBegin() {
             this.unitOfWorkCounter++;
@@ -56,4 +64,4 @@ var UnitOfWorkTracker = {
     }
 }
 
-export { UnitOfWorkTracker }
+export { UnitOfWorkTracker }