* support installation of "dupes", meaning grml2usb grml_2008.11.iso grml_2009.03.iso
* write bootloader configuration snippets to boot/releases/<release>/{grub.cfg,syslinux.cfg,...}
-> this could simplify live dramatically especially when supporting "already existing" images [thx gebi]
+* support integration of Debian ISOs (like netboot)
* provide simple output being between default and --quiet [thx gebi], like:
# grml2usb iso1 iso2 /dev/sda1
installing: