Merge branch 'dev'

* dev:
  v0.0.3
  Dont use util.format on protocol
  Able to disable logging
  Use block-queue
  Fix name err
  Remove queue
  [].func => Array.prototype.func and minor edit
  500 cocurrency
  Try queue all request into a queue
Merge branch 'dev'

* dev:
  v0.0.4
  Add bench result for 100op 500op 1000op 5000op
  Roll back connection pool for db#client
  db#del is also mapeable
  Keep ordering on each single connection;
  Upgrade node-block-queue to v0.0.2
Update exampleConfig: add logging option doc comment
Rename docc => doc
Add db#mput
Test case for db#mput
Add _db#mput
Better logging format