R1:e12961802bfb

Minor improvements to email management interface

Summary:
- If you have an unverified primary email, we show a disabled "Primary" button right now in the "Status" column. Instead we should show an enabled "Verify" button, to allow you to re-send the verification email.
- Sort addresses in a predictable way.

Test Plan:
- Added, verified and removed a secondary email address.
- Resent verification email for primary address.
- Changed primary address.

Reviewers: btrahan, csilvers

Reviewed By…