add _NET_WM_NAME to FbWindow::setName
add _NET_WM_NAME to FbWindow::setName

since fluxbox is a f**** WM it should be able to use f**** NETWM hints
in its toolkit ;-)

CCBUG: 702
(does not fix input)

luebking/fluxbox,luebking/fluxbox,luebking/fluxbox,luebking/fluxbox,Arkq/fluxbox,Arkq/fluxbox,luebking/fluxbox,Arkq/fluxbox,Arkq/fluxbox,Arkq/fluxbox