Version 2.1.4

Change Log:

• Added keyboard shortcut to pause/unpause the simulation with Ctrl + Space
  • Advancing a single step while paused is now down with the Space key
• Added option in preferences to toggle the pin name displays with Tab
• Fixed bug where input pin states would not be displayed when viewing chips
• Fixed bug where undo/redo was not working with wires of duplicated chips
• Fixed bug where wires could get messed up when holding shift while placing a duplicated chip
• Placing a bus now spawns both ends at the same time (to be more consistent with behaviour of other elements)