Issue #17: Added a test for RtUser.emails()
Issue #17: Implemented RtUser.emails(), added a new todo
Issue #17: Added tests for RtUserEmails
Issue #17: Implemented RtUserEmails
Issue #17: Added integration tests for RtUserEmails
Issue #17: Removed the todo
Issue #17: Added @since
Merge pull request #440 from asinyagin/issue17

#440: pull request Issue #17