v4.4.0

Added

• Support Resque 2
• Support redis-rb 4
• Support Ruby 2.5

Fixed

• Redis timeouts no longer crash the scheduler process
• Fix race condition when running multiple schedulers
• Fix setting the poll_sleep_amount option
• Escape class names in resque-web /delayed URLs

Changed

• Addressed redis-namespace deprecation warnings
• Ensure enqueue_in args are Numeric, catching a common issue passing ActiveSupport::Duration