HangFire 0.8.3

https://github.com/odinserj/HangFire/releases 0.8.3 * Added – Cancellation token for job methods that throws on server shutdown and job aborts. * Added – Place interrupted job back to its queue if possible. * Fixed – Can not delete jobs when method or class was removed. * Fixed – NullReferenceException in Monitor. * Fixed – SqlException when changing state of a job with absent target method. 0.8.2 * Added – Batch operations on jobs for HangFire Monitor. * Added – Retry and delete buttons for almost every page of HangFire Monitor. * Added – Duration and latency metrics for succeeded jobs. * Added – Display state transition latencies on job details page. * Added – DisableConcurrentExecution filter. * Misc – Tables in HangFire Monitor received some love. 0.8.1 * Added – MSMQ queues support for SQL Server job storage. * Added – "Deleted" state for jobs, when we don't want to process them anymore. * Added – "Requeue" and "Delete" buttons on a job page in HF Monitor. * Added – Logging job failures: warning - there is a retry, error - no attempts left. * Added – BackgroundJob.Requeue and BackgroundJob.Delete methods. * Changed – Set InvisibleTimeout back from 5 to 30 minutes. * Changed – RetryAttribute is deprecated. Use AutomaticRetryAttribute instead. 0.8 * Added – New server component subsystem - more reliability, more logging, less blocking on stop. * Added – Added monitor access authorization using ASP.NET RoleProvider. * Removed – Deprecated job format based on classes is not supported anymore (obsolete since 0.6.0). * Changed – Monitor access restricted to local requests only by default. * Changed – Some breaking changes for public API. Please, read GitHub release notes for details. * Changed – Default automatic retry attempts count set to 10. * Changed – Namespace optimization to reduce number of needed 'using' statements. * Fixed – PreserveCultureAttribute does not work. * Fixed – SqlServerStorageOptions.QueuePollInterval is not working. * Fixed – Rare 'arithmetic overflow error for data type tinyint, value = -1' exception. * Fixed – Numerous minor issues catched with new unit tests.