rename utils file to allow future more utils to be added

e2e/suites/pagination/pagination.test.ts

@@ -19,7 +19,7 @@ import { browser } from 'protractor';
 
 import { APP_ROUTES } from '../../configs';
 import { LoginPage, LogoutPage, BrowsingPage } from '../../pages/pages';
-import { LocalStorageUtility } from '../../utilities/local-storage';
+import { Utils } from '../../utilities/utils';
 import { RepoClient, NodeContentTree } from '../../utilities/repo-client/repo-client';
 
 describe('Pagination', () => {
@@ -75,7 +75,7 @@ describe('Pagination', () => {
         afterAll(done => {
             logoutPage
                 .load()
-                .then(() => LocalStorageUtility.clear())
+                .then(() => Utils.clearLocalStorage())
                 .then(() => nodesApi.deleteNodes([ content.name ]))
                 .then(done);
         });