Merge pull request #1806 from mozilla/issue1805

rename loggedInEmail to loggedInUser with backcompat support.  issue #18...

There are not yet proper front end tests of include.js, @lloyd and I are going to have Zac add Selenium tests for this.

In lieu of unit tests, I have tested this manually and am comfortable with the changes.  I added a console.log message stating loggedInEmail has been deprecated and updated the curly brace style.

r+

close #1805