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Merge branch 'master' into CFY-1431-add-bootstrap-and-teardown-validations-to-openstack-plugin
CFY-1431 created execute-operation workflow; made it so local node instances are created with an empty dict for runtime properties
CFY-1431 modified import for travis tests sake
CFY-1431 modified class name; fixed import that was changed for tests sake
CFY-1431 moved execute_operation to the bottom of the builtin workflows module
CFY-1431 fixed indirect dependency order issue in execute operation workflow
CFY-1431 flake8 fix
CFY-1431 flake8 fix
CFY-1431 changed unittest to testtools, fixed names of methods that nose thought to be tests
CFY-1431 removed dict/set comprehensions for 2.6 support
CFY-1431 added testtools to tox dependencies
CFY-1431 added call to testutils.TestCase.setUp on setUp override
CFY-1431 reverted import back to normal
Merge pull request #57 from cloudify-cosmo/CFY-1431-add-bootstrap-and-teardown-validations-to-openstack-plugin

CFY 1431 add bootstrap and teardown validations to openstack plugin