* Merge from debian unstable. Remaining changes: - debian/patches/9003-fix-path-to-hvmloader-in-testsuite.patch: adjust testsuite for 0001-fix-path-to-hvmloader.patch and 0002-Fix-path-to-pygrub.patch. - 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_precise.patch: Add Ubuntu precise as a supported distro. - 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