Finish admin permissions page and clean up everything

js/lib/Store.js

@@ -139,6 +139,15 @@ export default class Store {
     return records ? Object.keys(records).map(id => records[id]) : [];
   }
 
+  /**
+   * Remove the given model from the store.
+   *
+   * @param {Model} model
+   */
+  remove(model) {
+    delete this.data[model.data.type][model.id()];
+  }
+
   /**
    * Create a new record of the given type.
    *