remove sp-show-parens--- faces from package smartparens.
change flyspell faces.
add flyspell-prog-mode into my custom prefix keybinding map.
use `autoload' for flyspell and ispell to replace the `require' to speed up.
remove unrecognized command line option `-utf8` for `html2text` from mu4e init file.
Revert "remove unrecognized command line option `-utf8` for `html2text` from mu4e init file."

This reverts commit 00e6c131b57ec1129ec260d5b9801b701020ce9e.
configure org-passwords, add org-passwords template into org-capture.