---
2.3.1:
  - added 'stage' option to submit mode, which allows submission in a 'holding'
    state.  thanks to Juan.Fernandez@eu.Takata.com for this fix!
2.3.0:
  - added ability to set state=holding
  - added holding to statuslister
  - ENV['RQ_JOB'] now has yaml dump of entire job when run
  - some minor mods to updater/deleter
2.2.0:
  - added start, stop, shutdown, and feeder modes - thanks to mikael borg for
    suggestion
  - improved query usage
  - added credits section to help
2.1.0:
  - enhanced status reporting
  - fixed bug where rotating failed due to prohibition of deletion of running
    jobs added in 2.0.0.  the fixed basically adds a 'force' flag which is used
    by rotator.rb
  - made rotate a bit smarter: if a directory is given the rotation is
    automatically named and placed there.  if a pathname is given the rotation
    is placed there, and if no pathname is given one is automatically generated.
  - made pidfile generation even more robust : a pidfile is only considered o.k.
    when the lock has been obtained AND the the pid (if any) found in the
    pidfile is not running.  if a non-existent pid is found in the pidfile AND
    the lock could not be obtained it is assumed the nfslocking setup on that
    host is fubar and an auto-recovery takes place
  - fixed small bug which allowed the runner field of non-pending jobs to be
    updated
2.0.0:
  - deletion of running jobs is now prohibited (silently ignored actually).  rq
    has no central process and no communication whatsoever is done between
    nodes.  because of this it is not possible for delettion of a running job
    from the queue to somehow be signaled to the possibly remote node.  however,
    it is NEVER an error to kill a job on some host - rq will simply report the
    failed exit_status - thus one can easily set up a simple command, perhaps
    using ssh keys, to kill a remote job and THEN delete it from the queue if
    this behaviour is truely needed.  in simple terms a job may be removed from
    the queue BEFORE it starts running or AFTER is finishes -