pkg/btrfs: version bump
pkg/debootstrap: version bump plus get rid of usr/bin & usr/share
add squash-tool, an installer for sabotage

KEEP/etc/fstab: add examples fr a read-write mount

KEEP/etc/rc.boot: after mounting filesystems recheck for ro

KEEP/initramfs.fstab: this is now handled in fstab

KEEP/initramfs.init, KEEP/squash-tool, pkg/squash-tool: the new way to boot
sabotage with squash

utils/write-hd-image-squash.sh: remove the old way
pkg/mdadm: add non-https url. kernel.org has no more ftp
pkg/lxc: change configure because sabotage distro is not defined
linux.config: add multiple instances of devpts support for lxc
linux.config: add btrfs support, it is now stable enough (rumors)