0.22.3 bugfix release is up

This is mainly a bugfix release with minor gameplay tweaks. Featuring:

• Attempt to fix MacOS font rendering problem.
• Fine-tuned mineral density and composition - you still can find minerals at the edge of the ring, but you won't get rich from selling them.
• Increased reactor impact shielding, now it's harder to seriously damage reactor with minor impacts. Hitting big rocks will still jam the fuel rods.
• You can now fast-forward cutscenes by holding "accept" button (enter, space, gamepad: A)