Job retries
Update job retry tests and prevent retry info from getting persisted to mongo if not provided
Exponential delay strategy. Switch from "retries" to "attempts".
Remove custom delayFunction support
Job timeouts
If the watchdog finds a timedout job, have it check again immediately for more to work through a potential backlog of timed out tasks
If an error occurs when updating a timed out job, keep the watchdog going
Remove watchdog
Job prioritization support
Add test for minPriority worker
Merge branch 'priority' of git://github.com/blackboard/monq into development

* 'priority' of git://github.com/blackboard/monq:
  Add test for minPriority worker
  Job prioritization support
Update style and naming
Register retry strategies with worker
Cleanup
Cleaned up tests
Function spacing
Better delayed job test handling
Remove expiration
Simplify worker stop logic
Merge pull request #29 from scttnlsn/development

Retries, timeouts, priority