(face-spec-choose): Allow `t' to appear before the end.

(face-spec-choose): Allow `t' to appear before the end.
(mode-line, tool-bar, minibuffer-prompt, region, fringe, bold, italic)
(bold-italic, underline, highlight, secondary-selection, fixed-pitch)
(variable-pitch, trailing-whitespace): Don't use the old-style entries.
(mode-line-inactive, header-line): Move the `t' section to the
beginning so the `:inherit' setting can be shared.