* Merge from debian unstable. Remaining changes: - debian/patches/9004_ubuntu_fix_tree_support.patch: Fix tree detection for all ISO/HTTP source, to not longer fail with cobbler/koan. - debian/patches/9005_ubuntu_releases.patch: Add recent releases, and update EoL releases. - debian/{control,rules,pyversions}: Build using dh_python2, use debhelper v8 instead of cdbs; for some reason the package build an empty binary package when using dh_python2. - debian/control: added acl package to depends. - debian/control: added libvirt-bin to recommends * Dropped changes: - debian/patches/9003-fix-path-to-hvmloader-in-testsuite.patch, debian/patches/0004-Fix-path-to-qemu-dm.patch: xen binaries haven't been in /usr/lib/xen-default for a while, so either these patches were broken, or unnecessary.