This goes against collective responsibility for code. If you want to know the
author use git.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
For all output formats except kernel+initrd, you must use the full path of
the file they want to run. Make the options auto detect.
Split the uefi option to mean "use uefi firmware" not be ISO specific.
Allow specifying a bootable disk image, so we can test disk image output
formats with qemu too.
Add a test case for qcow2 boot under qemu.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
