Allow to deploy environment with following application. Here is
an example how to add different applications to rally-jobs.
This application content don't need to use some specific resources
like images etc. And just outputs "HelloWorld".
If you want to add your application just create directory for app
and copy application content to this directory, like in this example.
Change-Id: I72bb79f8e298754e7ea23e6b878d3ca27fad10ef
b4204de9de