(ps-print-version): Fix value.

(ps-print-version): Fix value.
(cl lisp-float-type): Require them.
(ps-number-of-columns ps-*-font-size): Try to select defaults
better suited when `ps-landscape-mode' is non-nil.
(ps-*-faces): Change default for Font Lock mode faces when
`ps-print-color-p' is nil.
(ps-right-header): Replace `time-stamp-yy/mm/dd'
by `time-stamp-mon-dd-yyyy'.
(ps-end-file ps-begin-page): Fix bug in page count for Ghostview.
(ps-generate-postscript-with-faces): Replace `ps-sorter' by
`car-less-than-car'.
(ps-plot ps-generate): Replace `%d' by `%3d'.