v0.20.0

What's Changed

• Fixes/enhancements to mongo, cosmos, /dev/null connectors
• Support better batching on writer by @adiom-mark in #313
• Support multi response in transforms. by @adiom-mark in #319
• Add web host param by @adiom-mark in #320
• Add verify max tasks. by @adiom-mark in #321

Full Changelog: v0.19.0...v0.20.0