segmentio/analytics.js-integrations — pull request #415 by amillet89 (2014-09-16 23:10:02+00:00)
Title: Fixes to IV

Added identify method (maps to 'setUserId') per Enriko's [request](https://segment.zendesk.com/agent/#/tickets/17101), as well as a test to check for userId. @lancejpollard @yields