Show the total number of items after pickup, not the delta
Report loud actions as noises, when not seen
Show a healing animation
Clean up and slightly fix descending levels
Add assertions about atomic actor and item creation and destruction
Improve and use the assertion utilities
Switch from Chan to TQueue

which is faster and handles tryReadTQueue, etc.
Let the client send lists of server commands
Let AI prepare a list of server commands
Fix projectile flight and collision with walls
Fix projectile hitting an actor
Rename 'end' to 'skip' and use it more
Saturate CmdAtomicSem with assertions

Plus a few more assertions and tweaks.
Clarify and fix the server semantics of remembering
Complete client semantics of remembering the dungeon
Fix item discovery by moving the data structure out of State
Fix switching the leader while performing special server commands
Introduce filtering of client atomic commands

This fixes bugs in item discovery, among others.
Fix a couple of bugs to do with actor lookup
Tweak and reenable old debug commands

This is more buggy than regular mode, since server debug options sometimes
make the client suspect of cheating and so crash the game.
Also, with the current code structure it's not trivial to turn server
debug on, during an already started game, which would be more useful.
This is probably not worth the effort.