Show edit contact photo options is a dialog

* Instead of a ListPopupWindow. This is more consistent with
  the behavior of the other edit contact menu options.
* Also add an option menu icon to change the photo to
  make this feature more easily accessible and since
  users may not realize they can click the photo to
  launch the choices dialog.

Bug 19124091

Change-Id: Ia4c37b3093f39d55784323f9a6d7bcf49ee96d16