v4.0.0

What's Changed

• Additional NewRelic configuration by @chrislrobinson in #75
• Use rsync instead of cp to copy certificates by @chrislrobinson in #74
• fix use of boolean-like environment variables by @fcoelho in #76
• add php-fpm slow logs and access logs metrics by @fcoelho in #77

Full Changelog: v3.1.0...v4.0.0