autotest: Mass PEP8 Fixes

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
.travis.yml: Add PEP8 checks

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
aexpect: Updates with the latest upstream version

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
tko/autotest-tko-parse: PEP8 Fixes

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
autotest: PEP8 E713/E714 Fixes

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
autotest: Trailing whitespace fixes

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
.travis.yml: Temporary workaround: Remove auto generated module

It is impossible to make style guarantees about tko/tko_pb2.py,
since that is auto generated, and outside the git repo (that one
is generated to run the unittests). So right before PEP8 checks,
simply delete that file.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
Merge pull request #831 from autotest/travis-pep8

Travis PEP8