Anaconda/pungi doesn't support multiple versions of the same package at
the time, so place all kernels on installation media in separate
directory and install them in %post script.
Unfortunately single "install" command installs only one version of
package, even if multiple matches, so must list all versions explicitly.
Include all major releases from 3.2 to 3.11 to not require change it too
often.
Also exclude kernel from fedora repos to force use of qubes kernel.
...even if NetworkManager is running.
Actually it is started by anaconda (and needed to provide D-Bus
interface) even if service disabled in systemd configuration.
