refactor(unit): Scrub Job from the systemd package
Merge pull request #433 from bcwaldon/scrub-job

Scrub Job from the systemd package
fix(functional): Update systemd functional tests
refactor(systemd): Depend on calling code to populate UnitState.MachineState
test(systemd): Use random unit name
test(systemd): Assert unit state after loading
test(systemd): Start and stop units, asserting state in between