OSTF unit tests fails with ContextualVersionConflict: (Babel 2.3.3)

[Tatyanka]

Steps to reproduce:
1. Switch to ostf master branch
2. run unit tests

Expected:
All tests are passed

Actual:
Dependency check fails with : /home/jenkins/workspace/gate-fuel-ostf-python27-db$ /home/jenkins/workspace/gate-fuel-ostf-python27-db/.tox/py27/bin/nosetests fuel_plugin/testing/tests/unit
2016-04-18 09:37:09.734 | .......E......
2016-04-18 09:37:09.734 | ======================================================================
2016-04-18 09:37:09.735 | ERROR: fuel_plugin.testing.tests.unit.test_requirements.test_requirements
2016-04-18 09:37:09.735 | ----------------------------------------------------------------------
2016-04-18 09:37:09.735 | Traceback (most recent call last):
2016-04-18 09:37:09.735 | File "/home/jenkins/workspace/gate-fuel-ostf-python27-db/.tox/py27/local/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
2016-04-18 09:37:09.735 | self.test(*self.arg)
2016-04-18 09:37:09.735 | File "/home/jenkins/workspace/gate-fuel-ostf-python27-db/fuel_plugin/testing/tests/unit/test_requirements.py", line 19, in test_requirements
2016-04-18 09:37:09.736 | pkg_resources.require('fuel-ostf')
2016-04-18 09:37:09.736 | File "/home/jenkins/workspace/gate-fuel-ostf-python27-db/.tox/py27/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 943, in require
2016-04-18 09:37:09.736 | needed = self.resolve(parse_requirements(requirements))
2016-04-18 09:37:09.736 | File "/home/jenkins/workspace/gate-fuel-ostf-python27-db/.tox/py27/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 834, in resolve
2016-04-18 09:37:09.736 | raise VersionConflict(dist, req).with_context(dependent_req)
2016-04-18 09:37:09.736 | ContextualVersionConflict: (Babel 2.3.3 (/home/jenkins/workspace/gate-fuel-ostf-python27-db/.tox/py27/lib/python2.7/site-packages), Requirement.parse('Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3'), set(['oslo.log', 'python-heatclient']))
2016-04-18 09:37:09.736 |

the same on openstack ci

[Tatyanka (tatyana-leontovich)]

https://review.openstack.org/#/c/307697/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/308322

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/307697
Committed: https://git.openstack.org/cgit/openstack/fuel-ostf/commit/?id=3d175903add420799867df05a6e3494979768db2
Submitter: Jenkins
Branch: master

commit 3d175903add420799867df05a6e3494979768db2
Author: Tatyana Leontovich <email address hidden>
Date: Tue Apr 19 13:38:01 2016 +0300

    Sync Babel requirements with openstack-globals

    To avoid conflicts with Babel version, sync requirements
    with openstack-globals

    Change-Id: I2a0270b12078965495af6b18f302396b29ebd9c9
    Closes-Bug: #1572073

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/308322
Committed: https://git.openstack.org/cgit/openstack/fuel-ostf/commit/?id=c3499188a1e031831f00c6333e164df69996e918
Submitter: Jenkins
Branch: stable/mitaka

commit c3499188a1e031831f00c6333e164df69996e918
Author: Tatyana Leontovich <email address hidden>
Date: Tue Apr 19 13:38:01 2016 +0300

    Sync Babel requirements with openstack-globals

    To avoid conflicts with Babel version, sync requirements
    with openstack-globals

    Change-Id: I2a0270b12078965495af6b18f302396b29ebd9c9
    Closes-Bug: #1572073

[Tatyanka (tatyana-leontovich)]

verified on 250 iso