twitter/zipkin — pull request #176 by mosesn (2012-10-11 21:09:15+00:00)
Title: respects limit

## motivation
Can't look up traces by span.

## fix
respects the "limit" field.

## testing
changed the spec to expect proper "limit" field. I don't know why it didn't in the first place. Seems like the test was incorrect too.