[gnome-klotski] Do not create new fundamental types

[Michael Catanzaro <mcatanzaro src gnome org>]

commit fef4861862d864547fbf98a00c464cb539f125f2
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue Jun 24 08:40:16 2014 -0500

    Do not create new fundamental types

 src/history.vala |    4 ++--
 src/puzzle.vala  |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/history.vala b/src/history.vala
index 4e98b44..cfaeabf 100644
--- a/src/history.vala
+++ b/src/history.vala
@@ -8,7 +8,7 @@
  * license.
  */
 
-public class History
+public class History : Object
 {
     public string filename;
     public List<HistoryEntry> entries;
@@ -97,7 +97,7 @@ public class History
     }
 }
 
-public class HistoryEntry
+public class HistoryEntry : Object
 {
     public DateTime date;
     public uint level;
diff --git a/src/puzzle.vala b/src/puzzle.vala
index 1bc881a..065c3ca 100644
--- a/src/puzzle.vala
+++ b/src/puzzle.vala
@@ -84,7 +84,7 @@ private const int[] image_map =
   -1, -1
 };
 
-public class Puzzle
+public class Puzzle : Object
 {
     public int width;
     public int height;