Watch all hosts before syncing with the cluster

Signed-off-by: Lewis Marshall <lewis@lmars.net>
Merge pull request #18 from flynn/watch-host-after-sync

Call watchHost during syncCluster
List jobs from the database rather than the cluster

Signed-off-by: Lewis Marshall <lewis@lmars.net>
Update job state in scheduler watchHost

Signed-off-by: Lewis Marshall <lewis@lmars.net>