Update 0.9.23

Alex's opening dialogue has been changed.
Support agent phrases in early missions have been updated.
In the new HQ, Leo now has a phrase about returning to the old HQ.
Improved vehicle handling (less realism, more controllability.)
Island: Energy capsule production has been slowed down.
Minor UI fixes for 3D mode.
Stryker's bullet and plasma armor increased. He can still be knocked down with a single missile, but other methods will require a bit more effort.
Raindrops on the screen are now blurry (like they're out of focus).