Move /live/bin/boot-device to /live/config/boot-device
Add "bump" target to Makefile

Bump the version number and version date of init.src
Use busybox for aufs mount in live-init
Use sort -u and comm in make-xlat-files to reduce .xlat files

Should have been using sort -u already.  Use comm to remove lines in
non-English .xlat files that match lines in the English version.