cue.tests.taskflow.flow.* not being run by checkin gate

[Min Pae]

Tests defined in cue/tests/taskflow/flow/* were not being run by the automated checkin gate. The directory was missing a __init__.py, which led to python failing to recognize it as a module. testr subsequently failed to discover the tests defined in the directory and the tests were not being run as part of the checkin gate.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/172529
Committed: https://git.openstack.org/cgit/stackforge/cue/commit/?id=dd8e421d3c2ff6e83f556b4cba943facd1ee0592
Submitter: Jenkins
Branch: master

commit dd8e421d3c2ff6e83f556b4cba943facd1ee0592
Author: Min Pae <email address hidden>
Date: Fri Apr 10 11:19:20 2015 -0700

    fixing taskflow.flow tests

    - Added a __init__.py to cue/tests/taskflow/flow to have it recognized
      as a module
    - Fixed test_create_cluster and test_delete_cluster which were failing
      due to recent changes

    Change-Id: I448d92265216dd1ac842a56c562bd7b86f3ba06d
    Closes-Bug: 1442753