[ZDWB-81] Implementation of the jumpstate command (these changes actually done several weeks ago).  Unit testing is still required for this change.  Moved Logger to the root namespace, did some minor code cleanup.  Implemented the basic jumpstate commands via Expect.
[ZDWB-81] Implemented the jumpstateForNonExistentStateFails test, and in doing so introduced the JumpStateFailed checked exception.
[ZDWB-81] Implemented the jumpstateForAssertionFailThrows test
[ZDWB-81] Implemented the jumpstateForExistentStateSucceeds test.  This should mean that jumpstate is now in a working and usable state, at least in the backend.  Further testing required on the CLI / Interface level
[ZDWB-81] Added a CLI-level integration test to exercise jumpstate