Release 0.5.2

• Fix id clashes after forking (See opentracing-contrib/nginx-opentracing#52)

Release 0.5.1

• Fix issue with IDs clashing (#26 )

Release 0.5.0

• Updates to OpenTracing 1.5.0
• Fixes parsing of JSON configuration for sampling rate (#25 )

Release 0.4.0

• Updates to OpenTracing 1.4.0
• Adds support for sampling (#20)

Release 0.3.1

• Fix linking error with plugin.

Uses opentracing-cpp-1.3.0

Release 0.3.0

• Update to use OpenTracing-1.3.0.
• Add support for dynamically loading in the tracer library.
• Provide a portable binary for linux-amd64.

Release 0.2.0

• Adds support for cs/sr/ss/cr annotations via the span.kind tag
• Updates to be compatible with zipkin-js (opentracing-contrib/nginx-opentracing#7)

Release 0.1.0

v0.1.0

Make testing optional.