** Window parameters can now be defined.
These are analogous to frame parameters, but are associated with
individual windows.
-
++++
*** The new functions window-parameters, window-parameter, and
set-window-parameter are used to query and set window parameters.
says to stop, where possible, at a pixel x-position equal to COLS
times the default column width.
+*** redisplay-end-trigger-functions, set-window-redisplay-end-trigger,
+and window-redisplay-end-trigger are obsolete. Use `jit-lock-register'
+instead.
+
** The Lisp interpreter now treats non-breaking space as whitespace.
** Miscellaneous new functions