Complete publish method
Improve Wraper
Add deleteQueue
Modified according to olivier comments
Merge pull request #1 in BBCTHREE/worker-lib from addQueueOptions to master

* commit '934dd517d61ee6cf84250be277045434ad7e9261':
  Modified according to olivier comments
  Add deleteQueue
Change licence
Add abstract command
Add missing use
Remove stopwatch component
Display debug on first run
Add more debug
Throw exception if debug is on
Correct tests and improve some stuff
Exit when needed
Correct typo
Change colors
Add some corrections
Use microtime
Wrapper can take a callback as an argument
Update README and add LICENSE