- Better handling of unknown units.
- Added `eval_state_derivs` option to GUI.
- Added trim trailing whitespace method to gui.
- Gui and step script now show numerical errors if they occur.
- Added `trim()` and `itrim()` methods to simulation log.
- Added a 2-variable parameter range exploration class.
- DataBlock viewer now can export frames and graphs.
- Various improvements and bugfixes.