Helloworld quickstart should follow the quickstart artifactId convention

[Sande]
I was just testing this quickstart for AS7and noticed the URL doesn't match the normal pattern: http://localhost:8080/poh5-helloworld/hello/json/David
I think it's because the quickstart was renamed at one point.

We would like the URLs to match the pattern of "jboss-as-"+quickstartname because it's more consistent for the users, ensures the quickstart URL doesn't overwrite another application URL, and it also makes it easier to test. I'm lazy. I like to replace the short snippet as I run through them.

Would you mind updating this to match the quickstart name as follows? http://localhost:8080/jboss-as-helloworld-html5/hello/json/David