0.4.92 validation release makes slugthrowers wickedly OP

The devs sneaked a cool little feature into some projectile weapons (guns and mags): bracket fire! It sets the weapon to fire randomly in a narrow cone to maximize probability of impact on a maneuvering target at long range.

This compensates for the glacially slow muzzle velocity of the 40mm autocannon and siege coilers, and maximizes the advantage that the 40mm's excellent rate of fire provides.

I look forward to testing this out with my dreadnought packing eight 40mm cannons on the hull.