Version 2.1.5

Change Log:

• Small improvements to simulation performance
  
• Minor reduction in simulation memory usage
• LED colour can now be changed from context menu (right-click)
• Added new colour option: Orange
• Buses can now be duplicated like other elements
• Fixed bug where some state was lost when duplicating elements
• Fixed bug relating to deleting a wire while editing it
• Fixed bug where multiple rows could become selected in ROM edit menu