(push): Macro deleted. Callers changed to do it explicitly.
(flyspell-incorrect-face, flyspell-duplicate-face): Use defface.
(flyspell-incorrect-color): Variable deleted.
(flyspell-duplicate-color): Variable deleted.
(flyspell-underline-p): Variable deleted.
(flyspell-font-lock-make-face): Function deleted.
(flyspell-mark-duplications-flag): Renamed from flyspell-doublon-as-error-flag.
(flyspell-mode-on): Delete the debugging message.
(flyspell-mode-off): Delete the debugging message.
(flyspell-mode-on): Set flyspell-generic-check-word-p
from the flyspell-mode-predicate property.
(texinfo-mode, mail-mode, message-mode):
Set flyspell-mode-predicate property.
(flyspell-auto-correct-binding): Fix custom type.
(mail-mode-flyspell-verify): Check for `Subject:'.
(flyspell-mouse-map): Use cond, not if.
(flyspell-region): Update message only every 100 actions.