* Merge from Debian unstable, remaining changes: - Do not build-depend on dietlibc-dev, which is universe. - Do now allow pkg-create-dbgsym to operate on this package. - Always use external libblkid and libuuid from util-linux, rather than building our own. - Includes debian/control in the source package to force the above. - Build with -O2 on powerpc to avoid a suspected toolchain bug (LP: #450214). - Do not include /etc/e2fsck.conf and remove on upgrade. (Fixes LP: #521648, #537483, #530071)