client.net.net_utils: Supress pylint E0202 complaint

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
contrib.modelviz: Suppress bogus pylint E0202 complaint

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
contrib.virt.site_job: Supress bogus pylint E0611 complaint

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
utils.external_packages: Supress bogus pylint E0611 complaint

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
.travis.yml: Install dependency packages for TKO compilation

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>