Release Process

1. Create a PR "Preparing for release X.Y.Z" against master branch
   • Alter CHANGELOG.md from <placeholder_version> (unreleased) to <X.Y.Z> (YYYY-MM-DD)
   • Update JaegerClientVersion in constants.go to Go-X.Y.Z
2. Create a release "Release X.Y.Z" on Github
   • Create Tag vX.Y.Z
   • Copy CHANGELOG.md into the release notes
3. Create a PR "Back to development" against master branch
   • Add <next_version> (unreleased) to CHANGELOG.md
   • Update JaegerClientVersion in constants.go to Go-<next_version>dev