Travis uses cpusets in such a way [1] that we can't actually write to
cpuset.cpu_exclusive ever, so none of these tests will work. They'll still
work in jenkins, though, so disabling them is probably ok.

Closes #118

[1]: https://github.com/travis-ci/worker/blob/master/backend/docker.go#L66Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
CC: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>