As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.
It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).
We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).
Also fixed "cf." Frenchism - it's meant as "refer to / see".
Forcing draw during debug break is now handled by ServersDebugger, and
only happens when the proper message is sent from the EditorDebugger
("servers:draw").
In a similar way, briging the window in foreground is now also handled
by ServersDebugger upon receiving "servers:foreground" which is sent by
the EditorDebugger when resuming from a break ("continue").
