Merge pull request oliver006#197 from oliver006/oh_redis5

Update to tests to use Redis5, Golang 1.11 for tests and build

Merge pull request oliver006#188 from zakharovvi/add-more-persistence…

…-metrics

add all metrics from 'redis info' persistence section

Merge pull request oliver006#179 from dkanchev/master

Pull request for issue "All configs with env variables"

use Dockerfile for build and release

add empty help text to be compatible with prometheus >= 2.3.1 (oliver…

…006#175)

* add empty help text to be compatible with prometheus >= 2.3.1

Properly decode uptime from redis (oliver006#170)

* Properly decode uptime from redis
* Add uptime_in_seconds & start_time_seconds to expected metrics

Merge pull request oliver006#169 from ihrigb/dev-hostname

Add alternative credentials claim for host.

Merge pull request oliver006#166 from EriconYu/master

add slow logs count

Merge pull request oliver006#165 from wojas/lua-script

Optional Redis Lua script for metric collection

Merge pull request oliver006#159 from fajpunk/maxclients

Add `maxclients` to config metrics