Correction regarding logo display on smartphones and addition of OGP setting function

【Contents of fixes and added functions】
■Fixed the problem that the PC logo image is displayed for a moment when displayed on a smartphone, which occurred due to the modification of the global menu in version 3.0.3.
■Added OGP setting function to theme options (Facebook/Twitter)

The following are the files that have been modified for this update.
【Corrected files】
admin/theme-options.php
functions.php
header.php
languages/en.mo
languages/en.po
responsive.css
style.css

The following files have been added for this update.
【Added files】
functions/ogp.php

For more details, please visit the download site for purchasers of CORE (tcd027).