Remove 'started' worker data
Remove REDISTOGO_URL hardcoded support
Remove defer support, required for large execution stacks on Ruby 1.9
Remove built-in error notification service support
Fix test
v3 Changes
Remove Sidekiq::Client.registered_workers and .registered_queues
Remove deprecated retries_exhausted support
fix test
Fix Redis-to-Go instructions
changes polish
merge master
Add dead job queue, fixes #1471
Merge branch 'master' into 3-0
Add more testing for dead stuff
Add upgrade notes
formatting
formatting
typo
Remove String format support for retried_at and failed_at