Create a "jboss-welcome.war" greeting page application

The application should create a /index.html page in the root of the web server, and should contain a greeting message with some getting-started instructions and useful links. It should include instructions for how to remove the application from the configuration, and possibly even some functionality to carry that out.

It should work in both domain and standalone mode and it should be referenced from the configuration as a filesystem-backed deployment, not as managed content or as a hot deployment.