1. initial branch.
Add const for achievement
1. 2013/03/12 add some function.
1. Add observer pattern.

2. Using GDI+ to load png in windows.
3. Run logo sceen succeed
4. To implement some achievement function.
Refactoring gdi+ init/uninit to main.cpp
1. Add mouse event in win32.

2. Refactoring link library directory.
3. Test OK in win32.
1. Implement DebugLog function in win32

2. Implement text texture win GDI+ in win32
3. Implement some achievement function.
Add sync achievement funtion
Implement load xml function for achievement
1. Add achievement xml
2. Implementing and testing read function in iOS.
1. Implement save and sync function.

2. Testing save and sync function OK.
modify debug log message
Add image property in CBAchievementItem
1. Add test image for achievement

2. Test OK for debug achievement.
3. Add unimplement function for achievement.
1. Implementing CBScreenExhibitor.

2. Testing CBScreenExhibitor.
Modify move offset.
Modify text on testing button
Fix bug
1. Add posted property in achievement item.

2. Check post flag in achievement manager.
1. Add support check in achievement manager.

2. Refactoring achievement initialize code to game app.