[FFE] Upgrade to 1.2.8

The lastest libvirt release is 1.2.8. This includes a number of bugfixes and memory leaks since 1.2.6. Uploading this to Utopic will make backporting of bug-fixes in SRUs easier.

This also enables apparmor-protection of libvirt-lxc containers.

The lp:qa-regression-testing scripts/test-libvirt.py has been run against this package, showing no new qa-regression-tests failures (only the following two pre-existing failures: )

======================================================================
FAIL: test_virt_install_cdrom (__main__.LibvirtTestVirtinst)
Test virt-install --cdrom
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./test-libvirt.py", line 1241, in test_virt_install_cdrom
    self.assertTrue(s in report, result + report)
AssertionError: Could not find 'Creating storage' in:
WARNING /tmp/tmpQSxt2f/qatest-virtinst.img may not be accessible by the hypervisor. You will need to grant the 'libvirt-qemu' user search permissions for the following directories: ['/tmp/tmpQSxt2f']
WARNING CDROM media does not print to the text console by default, so you likely will not see text install output. You might want to use --location.

Starting install...
Allocating 'qatest-virtinst.img' | 10 MB 00:00
Creating domain... | 0 B 00:00
Domain installation still in progress. You can reconnect to
the console to complete the installation process.

======================================================================
FAIL: test_virt_install_location (__main__.LibvirtTestVirtinst)
Test virt-install --location
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./test-libvirt.py", line 1333, in test_virt_install_location
    self.assertTrue(s in report, result + report)
AssertionError: Could not find 'Creating domain' in:
WARNING No 'console' seen in --extra-args, a 'console=ttyS0' kernel argument is likely required to see text install output from the guest.

Starting install...
Retrieving file MANIFEST... | 1.7 kB 00:00 ...
Retrieving file MANIFEST... | 1.7 kB 00:00 ...
Retrieving file linux... | 7.7 MB 00:00 ...
Retrieving file initrd.gz... | 16 MB 00:00 ...
Allocating 'qatest-virtinst.qcow2' | 10 MB 00:00
ERROR internal error: process exited while connecting to monitor: qemu: could not load kernel '/home/serge/.cache/virt-manager/boot/virtinst-linux.Dqu1zu': Permission denied

Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///session start qatest-virtinst
otherwise, please restart your installation.

Installing into a VM from my ppa (where it is called ~ppa2), I get:

serge@us1:/etc/apparmor.d/libvirt$ sudo apt-get install libvirt-bin
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  at-spi2-core colord colord-data dconf-gsettings-backend dconf-service fontconfig hicolor-icon-theme libatk-bridge2.0-0 libatk1.0-0 libatk1.0-data libatspi2.0-0 libcairo-gobject2 libcairo2 libcolord2
  libcolorhug2 libcups2 libdatrie1 libdconf1 libexif12 libgd3 libgdk-pixbuf2.0-0 libgdk-pixbuf2.0-common libgphoto2-6 libgphoto2-l10n libgphoto2-port10 libgraphite2-3 libgtk-3-0 libgtk-3-bin libgtk-3-common
  libgtk-vnc-2.0-0 libgudev-1.0-0 libgusb2 libgvnc-1.0-0 libharfbuzz0b libieee1284-3 libjasper1 libjbig0 liblcms2-2 libltdl7 libmirclient8 libmirclientplatform-mesa libmircommon1 libpango-1.0-0
  libpangocairo-1.0-0 libpangoft2-1.0-0 libprotobuf8 libpulse-mainloop-glib0 libsane libsane-common libspice-client-glib-2.0-8 libspice-client-gtk-3.0-4 libthai-data libthai0 libtiff5 libusbredirhost1 libv4l-0
  libv4lconvert0 libvpx1 libwayland-client0 libwayland-cursor0 libxcb-render0 libxcb-shm0 libxcomposite1 libxcursor1 libxi6 libxinerama1 libxkbcommon0 libxpm4 libxrandr2 libxtst6 python-libxml2
  python-urlgrabber spice-client-glib-usb-acl-helper
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libvirt0
Suggested packages:
  radvd lvm2
The following NEW packages will be installed:
  libvirt-bin libvirt0
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/7,255 kB of archives.
After this operation, 18.5 MB of additional disk space will be used.
Do you want to continue? [Y/n]
Selecting previously unselected package libvirt0.
(Reading database ... 64402 files and directories currently installed.)
Preparing to unpack .../libvirt0_1.2.8-0ubuntu1~ppa2_amd64.deb ...
Unpacking libvirt0 (1.2.8-0ubuntu1~ppa2) ...
Selecting previously unselected package libvirt-bin.
Preparing to unpack .../libvirt-bin_1.2.8-0ubuntu1~ppa2_amd64.deb ...
Unpacking libvirt-bin (1.2.8-0ubuntu1~ppa2) ...
Processing triggers for man-db (2.6.7.1-1) ...
Processing triggers for ureadahead (0.100.0-16) ...
Setting up libvirt0 (1.2.8-0ubuntu1~ppa2) ...
Setting up libvirt-bin (1.2.8-0ubuntu1~ppa2) ...
libvirt-bin start/running, process 28726
Setting up libvirt-bin dnsmasq configuration.
Processing triggers for libc-bin (2.19-10ubuntu1) ...
serge@us1:/etc/apparmor.d/libvirt$

The build log can be seen at https://launchpadlibrarian.net/184398510/buildlog_ubuntu-utopic-amd64.libvirt-python_1.2.8-0ubuntu1%7Eppa1_UPLOADING.txt.gz

Note that this will also require libvirt-python to be upgraded.