v0.4.0

What's Changed

• Revise Helm Charts for Production Installations by @krapie in #537
• Resolve concurrent map issue by @chacha912 in #538
• Add remove document command to CLI by @emplam27 in #540
• Clean up code after moving admin to rpc by @hackerwins in #541
• Remove panic method in crdt array by @emplam27 in #524
• Implement yorkie.Tree for text editors using tree model by @hackerwins, @krapie in #535
• Update CHANGELOG for v0.4.0 by @chacha912 in #543

Full Changelog: v0.3.5...v0.4.0