resque v2.2.0 released!

🏷️ release resque 🏷️ v2.2.0

Added

• Add ‘Retry Failed Jobs’ button to Failed page

Fixed

• Loading railtie when it did not exist #1765
• Fix closing parent Redis connection in child process after fork
• Fix the failed queues list on /queues UI when the RedisMultiQueue backend is used #1638