(custom-documentation-face): New face.

(custom-documentation-face): New face.
(custom-mode): Use custom-documentation-face for doc strings.
(custom-group-link): Fix the help string.
(custom-magic-show): Doc fix.

(custom-group-value-create): In links style,
use Go to Group instead of Show.
(Custom-goto-parent): New command.
(custom-mode-map): Bind u to Custom-goto-parent.
Bind SPC and DEL.
(custom-buffer-create-internal): Improve help for buttons.
(custom-button-face): New defface.
(custom widget-type): Use custom-button-face for buttons.
(custom-group-tag-faces): Initial value is nil.
(custom-variable-tag-face): Renamed from custom-variable-sample-face.
Initialize it like custom-group-tag-face.
(custom-group-tag-faces): Initialize to nil.
(custom-state-face): New defface.
(custom-magic-value-create):
Use custom-state-face for long State descriptions.

(custom-state-buffer-message): Display the message
only if the item is modified.  Take widget as arg.
(custom-mode): Use widget-edit-functions.