Merge branch 'stable-2.16'

* stable-2.16:
  ConfigServlet: use provider to get "MetaDataUpdate.User"
  Remove deprecated API field
  Remove wrongly used @Singleton
  Reformat with gjf
  Correct UI label to match API
  Ship simple-submit-ui as 'simple-submit-rules.html' instead of ssr

Change-Id: I6123b12a4d49d67f6f6d55588ad8661419369a77