title: How to post a COMMENT with FB application profile photo?
body: <p>It is possible for a 'facebook application' to post a COMMENT on a POST when there is a valid ACCESS_TOKEN. API call for the same is: <strong>/xyz_profile_id/comments/?access_token=...</strong> </p>
  
  <p>ACCESS_TOKEN being generated by allowing the "facebook application" to get access to xyz_profile_id. The post done will have default FROM ID as xyz_profile_id showing his/her profile photo along with the comment. </p>
  
  <p><strong>My requirement is this:</strong> How to change the FROM ID as appilcation_id so that the profile photo of the application is shown beside the posted comment. </p>