Various small changes in addition to:

Various small changes in addition to:
(Window Point): Mention return value of `set-window-point'.
(Window Start): `pos-visible-in-window-p' disregards horizontal
scrolling.  Explain return value if PARTIALLY is non-nil.
(Vertical Scrolling): Mention PIXELS-P argument to `window-vscroll'
and `set-window-vscroll'.
(Size of Window): The argument WINDOW to `window-inside-edges',
`window-pixel-edges' and `window-inside-pixel-edges' is optional.
(Resizing Windows): Explain return value of
`shrink-window-if-larger-than-buffer'.
`window-size-fixed' automatically becomes buffer local when set.
(Window Configurations): Explain return value of `set-window-configuration'.