[ADF-847] upgrade to use application configuration service (#1986)

* migrate core lib to use server-side app config

* fix unit tests

* update Search tests

- update tests
- upgrade tests to use TestBed

* update UserInfo tests

* update Social tests

* update tests

* update unit tests

* cleanup old code

* update about page

* update demo shell readme

* dev and prod configurations

demo-shell-ng2/app/app.module.ts

@@ -58,15 +58,21 @@ import {
     SocialComponent,
     AboutComponent,
     FilesComponent,
-    FormNodeViewer,
-    SettingComponent
+    FormNodeViewer
 } from './components/index';
 
+let appConfigFile = 'app.config-dev.json';
+if (process.env.ENV === 'production') {
+    appConfigFile = 'app.config-prod.json';
+}
+
 @NgModule({
     imports: [
         BrowserModule,
         routing,
-        CoreModule.forRoot(),
+        CoreModule.forRoot({
+            appConfigFile: appConfigFile
+        }),
         MaterialModule,
         LoginModule.forRoot(),
         SearchModule.forRoot(),
@@ -104,7 +110,6 @@ import {
         AboutComponent,
         FilesComponent,
         FormNodeViewer,
-        SettingComponent,
         CreateFolderDialog
     ],
     providers: [],