(vc-annotate-display-mode): Made default 'fullscale.

(vc-annotate-display-mode): Made default 'fullscale.
	(vc-annotate-color-map): New 18 element constant
	value/saturation, rotating hue colormap, from red->blue.
	(vc-annotate-mode-menu): "Default" -> "By Color Map Range".
	(vc-annotate-display-select): Switch to annotate-mode elsewhere.
	(vc-annotate): To avoid killing the required local variables,
	set them before the end of `with-output-to-temp-buffer', and
	after first switching to annotate-mode.
	(vc-annotate-warp-version): Add buffer argument in goto-line to
	ensure annotation, not source, is scrolled.
	(vc-annotate-color-map): Added custom TTY color map for
	8-color terminals, to use all of the colors in a sensible order.
	256-color terminals work well with the standard map.
	(vc-annotate-lines): Only strip the first color character if it
	is "#", to allow for terminal-style named colors.
	(vc-annotate-warp-version): Pass buf to `goto-line' to ensure
	the correct buffer is scrolled.