A unit test is raising an IOError [0] because a config file location
isn't mocked so the unit test looks for a non-existent file.
This PS mocks the location to avoid the error.
[0] IOError: [Errno 2] No such file or directory: '/etc/deckhand/deckhand-paste.ini'
Change-Id: I2a3aa3f80f5d1b3013d43d9c84a82e583c4384e2