Push back in the queue if an error happened when trying to mine a vote contract. Refactor the vote-queue-worker logs using bunyan.
Push back in the queue if an error happened when trying to mine a vote contract.
Refactor the vote-queue-worker logs using bunyan.

promethe42/cocorico,promethe42/cocorico,promethe42/cocorico,promethe42/cocorico,promethe42/cocorico