v0.3.1

Changelog

• 51977e3 Merge pull request #13 from PinataCloud/feat/cli-user-agent
• 336351a chore: update changelog for v0.3.1 release
• 2ba838b feat: identify CLI requests with a pinata-cli User-Agent
• 860fbd4 fix: tag websocket chat traffic and clean up vet warnings