Start-Nested from Bill

New consolidated VM+vApp startup function: Start-Nested
Write statusFile with CR not CRLF

use byte encoding and a cast to array of characters passed to
Set-Content. Specifically used for SDC-1430 (conky on Linux desktop).
DesktopInfo does not care.
Reorg and bugfix

Moved port and URL checks after service manipulation and added return
$msg to ManageLinuxService