[gnome-sudoku/vala-port] About dialog: restore original author credits

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 795ea90d7a58b299a0cca56e3e7108564d46b334
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Nov 24 17:05:58 2013 -0600

    About dialog: restore original author credits
    
    Also, remove the credit for the great artist Place Holder.

 src/gnome-sudoku.vala |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/src/gnome-sudoku.vala b/src/gnome-sudoku.vala
index cd5766f..6d96a5a 100644
--- a/src/gnome-sudoku.vala
+++ b/src/gnome-sudoku.vala
@@ -550,8 +550,11 @@ public class Sudoku : Gtk.Application
         }
     }
 
-    private const string[] authors = { "Robert Ancell <robert ancell gmail com>", "Christopher Baines 
<cbaines8 gmail com>" };
-    private const string[] artists = { "Place Holder <place holder com>" };
+    private const string[] authors = { "Robert Ancell <robert ancell gmail com>",
+                                       "Christopher Baines <cbaines8 gmail com>",
+                                       "Thomas M. Hinkle <Thomas_Hinkle alumni brown edu>",
+                                       "John Stowers <john stowers gmail com>",
+                                       null };
 
     public void about_cb ()
     {
@@ -560,10 +563,10 @@ public class Sudoku : Gtk.Application
                                "logo-icon-name", "gnome-sudoku",
                                "version", VERSION,
                                "comments", _("The popular Japanese logic puzzle\n\nGNOME Sudoku is a part of 
GNOME Games."),
-                               "copyright", "Copyright \xc2\xa9 2010-2011 Robert Ancell <robert ancell gmail 
com>",
+                               "copyright", "Copyright \xc2\xa9 2005-2008 Thomas M. Hinkle\nCopyright 
\xc2\xa9 2010-2011 Robert Ancell",
                                "license-type", License.GPL_2_0,
                                "authors", authors,
-                               "artists", artists,
+                               "artists", null,
                                "translator-credits", _("translator-credits"),
                                "website", "http://www.gnome.org/projects/gnome-games/";,
                                "website-label", _("GNOME Games web site")