[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

ng2-components/ng2-alfresco-webscript/src/webscript.component.spec.ts

@@ -87,7 +87,7 @@ describe('Test ng2-alfresco-webscript', () => {
 
             component.ngOnChanges(null).then(() => {
                 fixture.detectChanges();
-                expect(jasmine.Ajax.requests.mostRecent().url).toBe('http://localhost:8080/alfresco/service/sample/folder/Company%20Home');
+                expect(jasmine.Ajax.requests.mostRecent().url).toBe('http://localhost:3000/ecm/alfresco/service/sample/folder/Company%20Home');
                 done();
             });