GitLab

* doc/emacs/killing.texi (Clipboard): Document clipboard manager.

* doc/lispref/windows.texi (Basic Windows, Coordinates and Windows)
(Coordinates and Windows):
* display.texi (Refresh Screen, Line Height, Face Attributes)
(Overlay Arrow, Beeping, Glyphless Chars): Likewise.

* doc/lispref/frames.texi (Frames): Remove little-used "terminal frame" and
"window frame" terminology.
(Frame Parameters, Font and Color Parameters, Initial Parameters)
(Size and Position, Visibility of Frames): Callers changed.
(Frames): Clarify which terminals in framep are graphical.
(Initial Parameters): --geometry is not the only option which adds
to initial-frame-alist.
(Position Parameters): Note that icon-left and icon-top are for
old window managers only.
(Size Parameters): Sizes are in characters even on graphical
displays.
(Management Parameters): Note that window-id and outer-window-id
can't really be changed, and that auto-raise isn't always obeyed.
(Cursor Parameters): Document cursor-type explicitly.
(Size and Position): The aliases set-screen-height and
set-screen-width have been deleted.
(Visibility of Frames): Mention "minimization".

* doc/lispref/os.texi (Startup Summary): Minor clarifications.
(Startup Summary, Suspending Emacs): Standardize on "text
terminal" terminology.