Add Logout component and fix redirect URI issue

Author: pavankjadda

src/main/webapp/spring-data-ui/src/app/app.component.html

@@ -1,14 +1,10 @@
 <!--The content below is only a placeholder and can be replaced.-->
 <div style="text-align:center" class="container container-fluid">
   <h1>
-    Welcome to {{ title }}!
+    Welcome to {{ title }}
   </h1>
-
-  <ul>
-    <li>
-      <h2><a [routerLink]="['/employee/list']">Employees</a></h2>
-    </li>
-  </ul>
+  <br/>
+ <h2><a [routerLink]="['/employee/list']">Employees</a></h2>
 </div>
 
 <router-outlet></router-outlet>