Restore some of the quoting in the manuals

Restore some of the quoting in the manuals

* doc/lispref/windows.texi (Coordinates and Windows)
(Coordinates and Windows):
* doc/lispref/variables.texi (Lexical Binding)
(File Local Variables):
* doc/lispref/text.texi (Format Properties):
* doc/lispref/symbols.texi (Symbol Components):
* doc/lispref/strings.texi (Creating Strings):
* doc/lispref/sequences.texi (Sequence Functions):
* doc/lispref/searching.texi (Regexp Special, Regexp Search)
(Search and Replace):
* doc/lispref/processes.texi (Bindat Spec):
* doc/lispref/os.texi (Idle Timers):
* doc/lispref/objects.texi (Basic Char Syntax):
* doc/lispref/numbers.texi (Float Basics, Random Numbers):
* doc/lispref/nonascii.texi (Character Properties):
* doc/lispref/modes.texi (Major Mode Conventions, Mode Hooks)
(Mode Line Variables):
* doc/lispref/minibuf.texi (Text from Minibuffer):
* doc/lispref/loading.texi (Autoload):
* doc/lispref/keymaps.texi (Controlling Active Maps):
* doc/lispref/frames.texi (Frame Layout, Size and Position)
(Size Parameters, Implied Frame Resizing):
* doc/lispref/files.texi (Changing Files, Magic File Names):
* doc/lispref/eval.texi (Self-Evaluating Forms):
* doc/lispref/display.texi (Progress, Abstract Display)
(Abstract Display Example, Bidirectional Display):
* doc/lispref/commands.texi (Event Mod):
* doc/emacs/windows.texi (Displaying Buffers):
* doc/emacs/trouble.texi (Bug Criteria, Checklist):
* doc/emacs/text.texi (Enriched Text):
* doc/emacs/programs.texi (MixedCase Words):
* doc/emacs/picture-xtra.texi (Insert in Picture)
(Tabs in Picture):
* doc/emacs/misc.texi (Emacs Server, Printing):
* doc/emacs/mini.texi (Minibuffer History):
* doc/emacs/maintaining.texi (Old Revisions, VC Change Log)
(Pulling / Pushing):
* doc/emacs/killing.texi (Yanking, Cut and Paste, Clipboard):
* doc/emacs/help.texi (Help, Help Echo):
* doc/emacs/glossary.texi (Glossary):
* doc/emacs/frames.texi (Mouse Commands, Creating Frames)
(Frame Commands):
* doc/emacs/files.texi (Reverting, Saving, Directories):
* doc/emacs/entering.texi (Exiting):
* doc/emacs/emacs.texi (Top):
* doc/emacs/cmdargs.texi (Window Size X, Icons X):
* doc/emacs/anti.texi (Antinews): Restore quoting of text where
appropriate or replace quoting with @dfn.
* doc/misc/ediff.texi (Window and Frame Configuration):
* doc/lispref/processes.texi (Network Feature Testing):
* doc/lispref/display.texi (Display Margins): Quote the phrase
after "a.k.a." where appropriate.