* Added GroovyTemplate.template() utility and static import in webapp CLI, so
@RequestMapping("/")
@ResponseBody
String home(Model model) {
template "home.html", model
}
renders the template in /templates/home.html
[Fixes#49832753]
* Use file adapters in sample instead of internal flow
* Add Exception to signature of CommandLineRunner for
implementation convenience
* Updates for Security snapshots