C5 amir 137 post to facebook 5.1

@Husseny @MussabElDash @linsara @nadineadel 
    for scenrio reviewing:
1) login as student (or any other user)
2) navigate to http://localhost:3000/facebook/index
3) If you don't want the post appearing on your wall you can choose (from beside the share button) custom then only me