Show player type image in computer player selection list.
Small fix in AI algorithm (hope it's correct).
Add new default message.
Do not allow to resume game after game settings have been changed.
Init number preference UI elements with the default value.
Allow ignorezoom for background also for non-repeat images.
Add a default attribute for the player node of the tjger file.
Preliminary change of AI algorithms to prevent NPE.
Make main menu button (resume) disable with image.
Make game manager static in main frame and remove dependency from manager to frame.