- Make @timestamp utc
- Patch Time#to_json to emit an iso8601 string with millisecond
  precision.
- remove unused require
- remove printing of duration
- Tell Joda to parse with the current year as default.
  This allowed me to remove a bunch of old code that tried to compensate
  and work around that limitation. I believe at some point Joda added
  withDefaultYear() to the DateTimeFormatter class, which is what
  is now used. Woo!