1. I had to comment out one line configuring GRUB ttyS),
as it was giving error
2. registering image does not work: there is some problem
with PATH when trying to call gsutil; I did not want
to hardcode gsutil and gcutil paths until we have
Debian packages for those.
As for merge - should I first try to change my branch to new layout,
or create new branch (from the current state of the master)
and apply changes there?