fix(registry): Drop unnecessary error log
fix(agent): Clear JobState when shutting down machine
fix(agent): Push machine state immediately when machine starts
fix(agent): Unschedule rather than stop job
fix(machine): Explicitly create vs update machine state in registry
feat(machine): Bid for outstanding offers when starting machine
fix(registry): log error when attempting to create offer
Merge pull request #91 from bcwaldon/machine-addition

Bid for unresolved offers when new machine starts