[maven-release-plugin] copy for tag 4.18.2

Fixes bug where debug did not imply sampled (openzipkin#663)

It is true the b3-propagation spec suggests debug implies sampled.
This leniently parses a missing `X-B3-Sampled` header as long as
`X-B3-Flags: 1` is present.

Fixes openzipkin#661

[maven-release-plugin] copy for tag 4.18.1

bumps versions

[maven-release-plugin] copy for tag 4.18.0

Fixes timestamp race condition in rabbit tracing

[maven-release-plugin] copy for tag 4.17.2

Adds decorate option to wrap existing spring rabbit components (openz…

…ipkin#636)

[maven-release-plugin] copy for tag 4.17.1

Adds SpringRabbitTracing.Builder.remoteServiceName

`SpringRabbitTracing.Builder.remoteServiceName` allows you to set the
name the broker will have in the service graph. Usually you'll want a
service-scoped name like a cluster or similar.

This also adjusts the span names to always be operation names like other
instrumentation.