python-fuelclient configured with silent logging

[Alexander Dobdin]

The following code adds global NullHandler for each import of fuelclient:

logger.addHandler(NullHandler())

Steps to reproduce:
#!/usr/bin/env python

import logging
from fuelclient.client import Client

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
logger.info('test')
c = Client()

Expected results:
 print in stderr: test
Actual result:
 stderr is empty

[Roman Prykhodchenko (romcheg)]

Marking this as High because it breaks loggers, if python-fuelclient is used as a library.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/329476
Committed: https://git.openstack.org/cgit/openstack/python-fuelclient/commit/?id=5c9e2e57f3f9aa0033341e64f075f41043cdd858
Submitter: Jenkins
Branch: master

commit 5c9e2e57f3f9aa0033341e64f075f41043cdd858
Author: Roman Prykhodchenko <email address hidden>
Date: Tue Jun 14 16:22:57 2016 +0200

    Remove NullHandler

    Remove NullHandler that used to be used for preventing
    keystone from logging anything. Using Nullhandler is not
    appropriate for python-fuelclient as for library.

    Closes-bug: #1592445
    Change-Id: Ia77f7dbf32b7c39872dcafef6bac6a25e9fc499d