[Job] - Issue #34 - implemented rename method
[Job] - Issue #34 - added unit test for rename method
[Job] - Issue #34 - added func test for rename method
[Job] - Issue #34 - delete the test job after test
[Job] - Issue #35 - Added the timer option to create_freestyle
[Job] - Issue #35 - Added documentation for the timer option
[Job] - Issue #35 - Added unit test for the timer option
[Job] - Issue #35 - Added func test for the timer option
[Job] - Issue #35 - fixed func tests