networking-onos pep8 failed due to unavailability of i18n.py

[Mohammad Shahid]

2016-04-19 15:54:00.791 | pep8 runtests: PYTHONHASHSEED='3071409165'
2016-04-19 15:54:00.791 | pep8 runtests: commands[0] | flake8
2016-04-19 15:54:00.791 | /home/jenkins/workspace/gate-networking-onos-pep8$ /home/jenkins/workspace/gate-networking-onos-pep8/.tox/pep8/bin/flake8
2016-04-19 15:54:01.471 | ./networking_onos/common/config.py:18:1: N341 _ from python builtins module is used. Use _ from networking_onos._i18n instead.
2016-04-19 15:54:01.471 | ONOS_DRIVER_OPTS = [
2016-04-19 15:54:01.471 | ^
2016-04-19 15:54:01.536 | ERROR: InvocationError: '/home/jenkins/workspace/gate-networking-onos-pep8/.tox/pep8/bin/flake8'
2016-04-19 15:54:01.536 | ___________________________________ summary ____________________________________
2016-04-19 15:54:01.536 | ERROR: pep8: commands failed
2016-04-19 15:54:01.548 | + rc=1
2016-04-19 15:54:01.548 | + '[' -e .tox/pep8/bin/pbr ']'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/308745

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/308745
Committed: https://git.openstack.org/cgit/openstack/networking-onos/commit/?id=5a798e79013f581827c73f037c583c9d17016449
Submitter: Jenkins
Branch: master

commit 5a798e79013f581827c73f037c583c9d17016449
Author: shdcse093 <email address hidden>
Date: Thu Apr 21 10:21:00 2016 +0530

    Fix pep8,import errors to support i18n

    Use project-specific oslo.i18n wrapper
    This change follows the oslo.i18n usage guideline [1].
    [1] http://docs.openstack.org/developer/oslo.i18n/usage.html

    Closes-Bug: #1572546

    Change-Id: I7a35a41205d9ee12fdc18963a915020e42e65330