v1.1.0-rc1

Add support for automatic ACL config sync (#107)

- Added a controller for ACL and redis.cli config maps
- Added functionality for quickly propagating the ACL config changes to
all nodes
- Refactored the code of the redis cluster controller - moved all the
state handlers from helpers.go to rediscluster_controller.go
- Improved the handling of ACL commands in the rediscli wrapper - added
string conversions to help with hashing
- Added a dev mode flag to the Golang module for better debug messages