Change log:
- UI buttons for pausing and exiting the simulation, toggling the UI, and changing the simulation speed.
- A (very basic) title screen for creating a new simulation or loading an existing one (limited currently to the last 7 created simulations)
- Some performance improvements
- Fix to handling max particle speed with different time dilations. The "settime" command should work much better now.
Note: this release will not be compatible with worlds generated with previous versions.