fixed status 500 not considered as span error

v1.2.2

include 500

tracing - tag http 500 spans as error

v1.2.1

tracing - tag http 500 spans as error

Jaeger - allow env vars to override defaults

v1.2.0

Jaeger - use env vars to override defaults

some logging improvements

v1.1.1

some logging improvements

logging functionality

added:

• Logger function to get a structured logger from the context
• added a middleware to set request id in context

opentracing semantic conventions

v1.0.3

opentracing semantic conventions

removed ginprometheus and renamed label code -> status

v1.0.2

removed ginprometheus and renamed code label to status

opentracing semantic conventions

v1.0.1

opentracing semantinc conventions

refactored to stand-alone packages and some bug fixes

v1.0.0

refactored towards 1.0.0

prometheus subsystem validation

v0.3.2

prometheus subsystem validation