[Phpgroupware-docteam] Hello World App

[Brandon Neill]

I got permission from the author to post his app, he's going to rewrite it in
Docbook, He sent me an xml version but there were a lot of control character
problems, probably due to him writting it with and MS app.  We're going to work 
on
that, for now, the html version is in 
doc/en_US/html/dev/HellophpGroupware.html, we
should probably get that linked up on the doc site.

Brandon