Schked Versions Save

• Added support for Redlock 2.0 gem
• Renamed the redis_servers= config option to redis=
• Added support for Redis Sentinels (requires Redlock >= 2)
• Added Connection Pool for a performance reason

Added around_job callback #37

• don't fail when Redis is down #35

• Fix Schked hanging when Redis fails #34

• Added a standalone mode #32

• Added locks to support seamless deployments #31

Warning: breaking change — Schked requires Redis now.

Features:

• Added a config option do_not_load_root_schedule #30