Lightstep Tracer API - Public

To update either src/lightstep/collector/collector.proto|lightstep_carrier.proto, make the change in https://github.com/lightstep/lightstep-tracer-common and then, update using git subtree

Update subtree:

git subtree pull --prefix src/lightstep [email protected]:lightstep/lightstep-tracer-common.git master --squash