link to log in with demo account on the welcome page

src/main/java/com/commafeed/frontend/pages/DemoLoginPage.java

@@ -0,0 +1,23 @@
+package com.commafeed.frontend.pages;
+
+import javax.inject.Inject;
+
+import org.apache.wicket.markup.html.WebPage;
+
+import com.commafeed.backend.StartupBean;
+import com.commafeed.backend.services.UserService;
+import com.commafeed.frontend.CommaFeedSession;
+
+public class DemoLoginPage extends WebPage {
+
+	private static final long serialVersionUID = 1L;
+
+	@Inject
+	UserService userService;
+
+	public DemoLoginPage() {
+		CommaFeedSession.get().authenticate(StartupBean.USERNAME_DEMO,
+				StartupBean.USERNAME_DEMO);
+		setResponsePage(getApplication().getHomePage());
+	}
+}

src/main/java/com/commafeed/frontend/pages/WelcomePage.html

@@ -13,6 +13,8 @@
 				</div>
 				<h4 class="text-center">
 					CommaFeed is a bloat-free feed reader. It aims to replace Google Reader while keeping things simple.
+					<br />
+					<a wicket:id="demo-login">Try out the demo.</a>
 				</h4>
 			</div>
 			<div class="row">

src/main/java/com/commafeed/frontend/pages/WelcomePage.java

@@ -19,6 +19,7 @@ public class WelcomePage extends BasePage {
 	public WelcomePage() {
 		add(new BookmarkablePageLink<Void>("logo-link", getApplication()
 				.getHomePage()));
+		add(new BookmarkablePageLink<Void>("demo-login", DemoLoginPage.class));
 		add(new LoginPanel("login"));
 		add(new RegisterPanel("register") {
 			@Override