מא-ג׳ונג

This release contains the following improvements:

• Implement pause menu with 'Resume' and 'Quit' buttons
• Add Escape keyboard shortcut to pause game
• Pause game when main window is obscured
• Pause game when dialogs and menus are visible
• Don't allow pausing completed games
• Don't show confirmation dialog for layout change after completing game
• Fix text entry not always receiving focus in Scores dialog
• Translation updates