Build #14 - last playtest day!

Hey folks! The playtest ends today, and before it does I'm uploading one more build, with a couple more fixes, and some changes based on player feedback.

CHANGES - the headshot gauge will now fade in the more full it is, instead of being fully opaque always - movement inertia changes: - all actors (players and goons) will now receive greater reduction in movement speed from sudden movement direction changes - ceasing to move will now reduce your movement speed acceleration down to minimum, and the momentum will need to be built back up over time

BUGFIXES - fixed inverse sound icons on ammo types - fixed dropping the held-in-hands weapon not re-equipping the previously held weapon - fixed being able to leave shell casings on water