To accommodate multi-monitor window management, the window-layouter
rules must be extended. By renaming the rules file to a version number
reflecting the date of change (24.12), we prevent the loss of
window-layout state when switching back and forth between different
versions of the window-layouter.
The default rules contain now the definition of three displays
("primary", "secondary", and "ternary") and map 3 screens to each
display.
Issue #5390
6c7cbb2c5e