fix(daemon): always attempt to unlock old locks

No matter what happens always attempt to see if etcd is up and unlock
a lock.
feat(daemon): don't unlock if strategy is reboot

Avoid trying to unlock from etcd if the strategy is plain reboot.
hack(scripts): add silly undocument cluster-test script
Merge pull request #9 from philips/always-attempt-unlock

fix(daemon): always attempt to unlock old locks