v1.9.0

Enhancements

• Honor env. variable to set gRPC listener address (#386) | @seh
• Add retries when connecting to redis during init (#382) | @MikeGoldsmith

Fixes

• Properly set meta.refinery.local_hostname field (#387) | @jharley

Maintenance

• docs: update rules example (#378) | @vreynolds
• Bump github.com/gomodule/redigo from 1.8.5 to 1.8.8 (#374)
• Bump github.com/spf13/viper from 1.9.0 to 1.10.1 (#375)
• Bump google.golang.org/grpc from 1.42.0 to 1.43.0 (#372)