Various fixes
Add email field to audit log page
Merge branch 'add-audit-log' of github.com:codeforamerica/spot-it-like-its-hot into add-audit-log

* 'add-audit-log' of github.com:codeforamerica/spot-it-like-its-hot:
  Who will watch the watchers?
  Require login for viewing the audit log.