New stuff:
* distro/live-icewm -- basic icewm livecd with autologin;
* distro/live-rescue -- yet another gparted^Wrescue CD.

A better part of base+rescue tagged pkglist split off into
extra+rescue where the content belongs.

Thanks ruslandh@ for proposing to do a graphical rescue with some
particular tools (albeit qt4-fsarchiver clearly needs more work).