Update the cabal and other descriptions
Fix a crash for missiles carrying video cameras
Fix detection that a projectile is hit multiple times

(e.g., due to going through some targets previously).
Quickfix projectile handling by giving all projectiles light and vision

TODO: A separate faction (FactionId 0) just for all blind projectiles
(not cameras) may be the right approach.
Don't start wars by striking down somebody's projectile
Give projectiles (almost) one turn to get to speed
Quickfix a discrepancy between server and client smells
Tweak the messages when a dead actor is hit again
Generalize level drawing to the case of no party leader
Let clients without a leader display stuff
Prevent AI from looping via bumping against hidden door
Fix high score award for a lost game
Don't spam the messages area when using stairs
Replace DominateActorA with LoseActorA; CreateActorA

DominateActorA conflicted with an optimization where we assume
that alive actors from our party don't vanish from view
(Descend is another case where the assumption is violated
and it already uses LoseActorA; CreateActorA).
Switch instead of squash, when somebody blocks the stairs

Squashing doesn't work now that actors are incapacitated for one turn
before they die.
Fix halving the speed of dominated actor
Alert about forced level switch when a staircase is occupied
Ignore spawning faction leaders when determining levels to act on
Fix SetPathSer taking no time for AI

(for simplicity, we want AI to always take time, so that we know
it does not loop).
Describe incapacitated actors specially