square/rails — pull request #50 by strzalek (2014-07-09 15:55:16+00:00)
Title: Backport setting time_precision for JSON::Encoding

`iso8601` can take decimal precision as an argument, this commits backports 2 commits from `4-1-stable` (4cfc467 && c096500) which add ability to set default precision for AS encoder.