VASSAL Engine 3.5.1

What's new in this version:

Fixed:
- Multi Action Button and Toolbar Menu lose last item in Menu Entry list
- Prevent concurrent updates to preferences
- Fast Match forgets fields when added to Maps and Module
- Fast Match was picking wrong number of cards from decks
- GameRefresher incorrectly deletes off map pieces
- NumberFormatException when private server port is empty
- Advanced Search displays "hit lists" properly for names/types of prototypes & configurables
- Refresh Predefined Setup incorrectly clones at start stacks
- Die Roll 'Prompt for values when button pushed' dialog is broken
- Unused Images Tool was suggesting some in-use GIFs for deletion
- NPE when adding dockable PieceWindow from module extension
- OverlappingFileLockException when attempting to write preferences
- Fast-Match wasn't working for "Moved" property
- Chat log should start display on bottom line even with larger monitors
- Sanitize temp file basenames to escape illegal characters
- Don't try to write a logfile without having started one
- IllegalBuildException on gpIdChecker when using GameRefresher
- NPE in Embellishment.addLocalImageNames()
- NPE when using Game Refresher on predefined setups
- ExecutionException when opening a moved or renamed module file
- ChessClock buttons with icons had inappropriate height/width
- NPE in BugUtils when involved from the Module Manager
- NoSuchElementException using Edit All Contained Pieces
- ArrayIndexOutOfBoundsException using Edit All Contained Pieces
- Missing message for failure to write file
- Cannot create new module extensions
- DiceButton icons and Mask images incorrectly suggested for removal by unneeded-file-remover
- NPE in HelpFile.addLocalImageNames()
- Search wasn't searching into PieceSlots ("Single Piece" items in Setup Stacks, etc.)
- MouseoverStackViewer should not show face-down cards in decks, should not unnecessarily clip underneath text, and should not run off left edge of screen in an overzealous attempt to center-on-cursor
- Module extension file extension incorrectly listed as .vext instead of .vmdx
- MouseoverStackViewer mis-centering if "draw pieces" wasn't selected
- Loads from wizard should add filename to window title
- ExecutionException when cancelling a screenshot
- Alt-click, Shift+Ctrl-click should not change selection
- NPE when loading second game in modules using deprecated Map.mainWindowDock

Improvements:
- Reference Manual cleanup
- Improved/Repaired some tables in online docs
- Upgrade bundled Java to 15.0.2+7
- Remove confusing Vassal Version column from MM, show based on preference
- Added infinite loop protection to PlaceMarker
- Search now pre-selects contents of search field when restoring/remembering the previous contents
- Standardize remaining dialogs
- Alt+Shift now an option for band selection of Does Not Stack pieces
- Better window title bars (filename-first like most apps)
- Added infinite loop protection to TurnTracker
- Action Button trait should arm when pressed, fire on release