segmentio/analytics.js-integrations — pull request #179 by ianstormtaylor (2014-06-03 19:19:11+00:00)
Title: google-analytics: fix custom metrics, remove from page/track/group

- remove custom metrics from `page`
- remove custom metrics from `track`
- remove custom metrics in `initialize` from `group.traits`
- fix mapping order to match Segment interface

cc @lancejpollard @calvinfo @DirtyAnalytics @raphael-parker

needed for a few different customers