rename two times service class just once

move responsability providers configurration in setting service
refactoring

ng2-components/ng2-alfresco-viewer/demo/src/main.ts

@@ -79,7 +79,7 @@ class MyDemoApp {
     }
 
     login() {
-        this.authService.login('admin', 'admin', 'ECM').subscribe(
+        this.authService.login('admin', 'admin').subscribe(
             token => {
                 console.log(token);
                 this.token = token;