v2.7.4 - Tracing release

Add tracing based on opentelemetry:

• Enable tracing by configuration

// Configures the global LOG instance with tracing enabled.
err := SetWithConfig("info", &LogConfig{EnableTraces: true, EnableTextLogging: false})

• LogMiddleware adds tracing to the http pipeline
• trace_id and span_id is added to the structured log

v2.7.3

Bug fix release, made ExtractStacktrace nil safe.

v2.7.2

Reports stack traces in a stacktrace field, when the error is created by one of the following modules:

• golang.org/x/xerrors
• https://github.com/pingcap/errors
• https://github.com/pkg/errors
• https://github.com/go-errors/errors

The implementation is based on https://github.com/getsentry/sentry-go

v2.7.1

Better logging of application stop