Merge pull request redis#1000 from kassiansun/master

Add go.mod and go.sum

Merge pull request redis#978 from go-redis/fix/lua-readonly-error

Retry master node on readonly errors. Fixes redis#977

Merge pull request redis#946 from allenwq/clusternode-race

Fix race condition when creating the cluster node

Merge pull request redis#936 from go-redis/fix/retry-cluster-pipeline…

…-read-cmds

Retry cluster pipeline read commands

Merge pull request redis#890 from go-redis/fix/close-nil-sentinel

Fix closing nil sentinel

Add ZPopMin and ZPopMax (redis#853)

* Add ZPopMin and ZPopMax

Update changelog

Fix example

Merge pull request redis#822 from go-redis/fix/receive-message-rework

Rework ReceiveMessage

Add changelog