Errors out when running with nose multiprocess

[danielwuz]

When running with --processes flag in nose tests, I receive below error message:

20:51:00     is_multiprocess = getattr(options, 'multiprocess_workers', 0) > 0
20:51:00 TypeError: unorderable types: str() > int()

I believe this is caused here and I've created a PR to fix this issue.

FYI, below is the command I used to run my tests:

nosetests --processes=6 --process-timeout=3600 --process-restartworker --with-flaky --force-flaky --max-runs=3 -v tests/functional 2>&1

[danielwuz]

I have hard time figuring out build failure as pylint reports errors unrelated to my change, but this is the fix.

[danielwuz]

Closed by #77