(customize-save-variable): Take themes into account.

(customize-save-variable): Take themes into account.
(custom-variable-save): Take themes into account.
(custom-variable-reset-saved): Add comment-widget.
(custom-variable-reset-standard): Add comment-widget.
(custom-variable-reset-standard): Take themes into account.
(custom-face-save): Take themes into account.
(custom-face-reset-standard): Take themes into account.
(custom-save-variables): Take themes into account.
(custom-save-faces): Take themes into account.
(custom-save-faces): Take themes into account.
(custom-save-resets): New function.
(custom-save-loaded-themes): New function.
(customize-save-customized): Take themes into account.