trivial version bumps
trivial version bumps

adriancole/zipkin,openzipkin/zipkin,adriancole/zipkin,openzipkin/zipkin,openzipkin/zipkin,adriancole/zipkin,openzipkin/zipkin,twitter/zipkin,twitter/zipkin,adriancole/zipkin,openzipkin/zipkin,twitter/zipkin,twitter/zipkin