Launcher: Added logout url

Change-Id: I321d8e7feb7054b369bee0210200c77dc24fbe08
diff --git a/core/installer/welcome/launcher.go b/core/installer/welcome/launcher.go
index 1d51ee8..4e3f01f 100644
--- a/core/installer/welcome/launcher.go
+++ b/core/installer/welcome/launcher.go
@@ -142,6 +142,7 @@
 type homeHandlerData struct {
 	LoggedInUsername string
 	AllAppsInfo      []AppLauncherInfo
+	LogoutUrl        string
 }
 
 func (s *LauncherServer) homeHandler(w http.ResponseWriter, r *http.Request) {
@@ -157,6 +158,7 @@
 	data := homeHandlerData{
 		LoggedInUsername: loggedInUsername,
 		AllAppsInfo:      allAppsInfo,
+		LogoutUrl:        s.logoutUrl,
 	}
 	if err := s.homeTmpl.Execute(w, data); err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)