Added widgets and fixed bugs, updated quick tags

【Contents of the fix】
■Added Google custom search widget.
■Fixed a display bug when closing comments.
■Updated quick tag content (addquicktag_import.zip)

The files that have been modified for this update are as follows
【Added files】
widget/google_search.php

【Modified files】
style.css
style_sp.css
style_tb.css
languages/en.mo
languages/en.po
admin/ theme-options.php
comments.php
footer.php
functions.php
single.php

【Deleted files】
images/no_image_card.gif

For more information, please visit the download site for purchasers of Reviewer (tcd026).