only notify when the lobby settings differ from the default
announce map changes
announce kicks and bans
make the change notifications more natural
notify about difficulty level changes
disable music installation during a game

closes #6058
don't display idle overlays during actor transformations

fixes #6018
ITeleportable does not exist anymore
self-document CrushClass of crates
let supply trucks spawn money crates upon destruction
ContainsCrate is redundant to LeavesHusk
Merge pull request #6152 from Mailaender/money-crate

Added money crates to be spawned by destroyed supply trucks
Write trait requirements in documentation.
IonCannonPower can now define how many ticks into animation the weapon impact happens (as opposed to at the end of the animation).
Bridge can now define DemolishWeapon. Defaults to previous "Demolish".
#6030 Regression fix. CreateEffectWarhead effect location and water impact sound.
Merge pull request #6158 from Phrohdoh/DocPrintRequires

Write trait requirements in documentation.
Merge pull request #6156 from UberWaffe/MinorFixes

Closes #6128
Merge pull request #6169 from UberWaffe/CWRegressFix

#6030 Regression fix: CreateEffectWarhead
enum SubCell => int & Dictionary<SubCell, WVec> => WVec[]