Don't build VMDK.  Note that I just "if false"'d it for now, in
case someone does want to build it.  Similarly, I just commented out
the check for virtualbox in check_build_host.
Merge branch 'master' of gitserver.ixsystems.com:/git/repos/freenas-build/freenas
Don't build VMDK.  Note that I just "if false"'d it for now, in
case someone does want to build it.