* Add appraisal
* Test CLI run (write pid, system boot, print banner)
* Cleanup test helper
* Set REDIS_URL to use non-default host in test env
* Move mintiest-focus to test bundle group
* Refactor CLI test
Extracted 3 main parts:
- parse
- run
- signal handling
* Move demonization and pid write from parse to run phase
* Move queues default from validate to setup options phase
* Add pry-byebug gem
* Drop Sidekiq::Test
* Require launcher in CLI
* Remove TODOs
* Rework job processing in light of Rails 5's Reloader, see #3221
* Ignore built gems
* Documentation, testing
* Add fallback for 'retry' value server-side, fixes#3234
* Fix job hash reporting in stats
* cleanup
* Add job for AJ testing
* Push jobs with invalid JSON immediately to Dead set, fixes#3296
* Break retry logic into global and local parts, fixes#3306
* fix heisentest
