Fixes to incorrect use of non-local log instance. Improvement to infer an empty binding key if none are provided.
Turn off logging no ack channels for batch acking
Fix defect where some edge cases in acks return from the promise
Fix syntax error. Correct breaking log tests
Version bump
Merge pull request #3 from arobson/master

Bug fixes around acks and logging
Replace Bunyan with Winston on 0.1.6. Change log path.