streadway/handy — pull request #7 by peterbourgon (2014-01-17 12:21:00+00:00)
Title: Make CircuitBreaker public

- The constructor still panics on invalid failureThresholds.
- Made breakerHandler private, as golint was complaining about comments, and it didn't seem to be usable outside of DefaultHandler, anyway.
- Fixed a Printf-args-mismatch in metrics_test.go

Please review and adjust method comments as desired.