AimeeRose/zipkin-tracer — pull request #1 by AimeeRose (2014-01-06 23:12:07+00:00)
Title: Feature/move process tracer file

Move file for ZipkinTracer::ProcessTracer to /lib/zipkin-tracer/process_tracer so it may be required by gem with
```
require 'zipkin-tracer/process_tracer'
```