Disable pylint errors as it fails right now

See:

https://bitbucket.org/logilab/pylint/issue/209/attributeerror-getattr-object-has-no

Signed-off-by: Michal Čihař <michal@cihar.com>
Try installing latest pylint

Signed-off-by: Michal Čihař <michal@cihar.com>