Added [0.1] engine mount slot to get even faster results for very powerful engines.

Fixed issues caused by gas update and simplified control panel.

Removed info about "Higher body (engine) mass increases propeller efficiency".

Corrected info about "Higher body (engine) mass increases propeller efficiency.". This assumption was wrong. It was the effect of sub-body mass.

Added indicator light to selected engine slot on the beam.

- Added supercharger to the default engine
- Added valve lever to use when valve setting is at minimum to increase flow speed

Moved fluid pumps and changed thumbnail

Improved "balance achieved" behavior.

Modified scale beam to allow bigger and powerful engines to hang on the other side of the pivot point for both giving more space and to prevent testbed going in to air.

Moved orange basket to left to give more space for the engine slots nearby.