[ Evan Dandrea ] * Suppress Log Out item in the live session (LP: #750140).
[ Martin Pitt ] * scripts/casper-helpers, find_cow_device(): Do not ever probe floppy devices. There are lots of computers which still have a floppy controller (and thus a /dev/fd0), but no actual floppy. Trying to send anything to /dev/fd0 will result in very long timeouts. Here this causes booting the live CD to take more than 30 minutes. (See also LP #539515 for the corresponding bug in udev/udisks). (LP: #739774)