Fixed multiple bugs

【Contents of fixes】
■Fixes for SSL support for Google Custom Search.
■Fixed an error that could occur in PHP7 environment.

The following files have been modified for this update.
【Corrected files】
admin/theme-options,php
language/en.po
language/fa.mo
widget/ad.php
widget/google_search.php
widget/news_list.php
widget/pr_list.php
widget/press_list.php
widget/ranking_list.php
widget/styled_post_list1.php
widget/styled_post_list2.php
widget/year_archive.php
header.php
style.css

For more details, please visit the download site for the purchaser of Opinion (tcd018).