0.14.0 Use Security Group rules instead of inline rule blocks. Fix example. Fix README. Update to latest versions of modules. Change region for tests

what

• Use Security Group rules instead of inline rule blocks
• Fix example. Fix README
• Update to latest versions of modules
• Change region for tests
• Add possibility to use existing Security Groups to place the Redis cluster into
• Add the possibility to setup cluster_mode https://www.terraform.io/docs/providers/aws/r/elasticache_replication_group.html#cluster_mode

why

• Use Security Group rules instead of inline rule blocks - make the module idempotent
• Fix example. Fix README - add working example to the example section in README
• Update to latest versions of modules - be up to date
• Change region for tests - we use us-east-2 for all test (us-west-1 is a very limited region)
• Add possibility to use existing Security Groups to place the Redis cluster into - in case it's not allowed to create SG in the module
• Add the possibility to setup cluster_mode - Create a native Redis cluster with shards