2.15.0

What's Changed

• add version 3.6.1.8 by @team-gateway-bot in #630
• add version 3.8.1.0 by @team-gateway-bot in #634
• add version 3.4.3.13 by @team-gateway-bot in #635
• add version 3.7.1.3 by @team-gateway-bot in #636
• fix(expose): pass http-proxy variables to build behind proxy by @Tieske in #637
• feat(luacov): prepare for newly released luacov html reporter by @Tieske in #638
• add version 3.9.0.0 by @team-gateway-bot in #639
• Add version 3.9.0 by @kikito in #640
• release 2.15.0 by @kikito in #641

Full Changelog: 2.14.0...2.15.0