Whonix-Gateway: only update debian (/etc/apt/sources.list) and torproject.org (/etc/apt/sources.list.d/torproject.list) package lists for eventually installing newer Tor, torsocks, obfsproxy from torproject.org. (Only in case its newer in torproject.org repository.)
build-steps/2600_export-vbox-vm: added license text with some help, disclaimer and license