Fixed multiple bugs

【Contents of the fix】
■Fixed a bug where the site title would be underlined if the logo image for smartphones was not set.
■Fixed a bug in the full-width header page where the header and fixed footer bar for smartphones were not compatible.
■SSL support.
■Fixed the bug that the article title is not displayed in the browser tab when meta title is input.
■Fixed a bug that the quick tag function was not working.
■Fixed a Notice error that appeared in debug mode.

The following files have been modified for this update.
【Corrected files】
functions/header-logo.php
functions/seo.php
js/script.js
functions.php
functions.php ・header.php
header-nonav.php
style_sp.css
style.css
【Added files】
admin/js/mce-button.js
functions/custom_editor.php

For more information, please visit the download site for purchasers of Opinion (tcd018).