fix(fleetctl): Print job targets when state changes occur

This feature was dropped during the great state refactor. Return it to its previous glory:

```
core@core-03 ~/fleet $ ./bin/fleetctl load ping.service
Job ping.service loaded on 1c52a187.../172.17.8.101
core@core-03 ~/fleet $ ./bin/fleetctl start ping.service
Job ping.service launched on 1c52a187.../172.17.8.101
core@core-03 ~/fleet $ ./bin/fleetctl stop ping.service
Job ping.service loaded on 1c52a187.../172.17.8.101
core@core-03 ~/fleet $ ./bin/fleetctl unload ping.service
Job ping.service inactive
```