[maven-release-plugin] copy for tag 5.1.5

Fixes OSGi setup, missing for brave-instrumentation-http (openzipkin#743

)

[maven-release-plugin] copy for tag 5.1.4

Clarifies the intent of sampled status

[maven-release-plugin] copy for tag 5.1.3

Bumps to latest zipkin

[maven-release-plugin] copy for tag 5.1.2

version bump

[maven-release-plugin] copy for tag 5.1.1

Adds test artifacts to bom