Rename to dleyna-control

dleyna code is being restructured as decided in
https://lists.01.org/pipermail/dleyna/2013-February/000099.html,
as a result it makes sense to rename media-service-demo to
dleyna-control and move the code from
git://github.com/01org/media-service-demo.git to
git://github.com/01org/dleyna-control.git