Fixed multiple bugs

【Contents of fixes】
■Optimization of breadcrumb list
■Fixed the bug that the height of the video may not be displayed correctly when inserting a video in “Production Results”.
■Removed the old PHP description.
■Adjusted the style of footer SNS icon for mobile size.
■Updated the page builder.
■Fixed a bug that some layouts may be broken in IE.

The following are the files that have been modified for this update.
【Modified file】
admin/css/my_admin.css
admin/js/my_script.js
admin/theme-options.php
breadcrumb.php
css/responsive.css
fonts/design_plus.eot
fonts/design_plus.svg
fonts/design_plus.ttf
fonts/design_plus.woff
functions.php
functions/head.php
languages/ja.mo
languages/ja.po
pagebuilder/assets/admin/css/admin.css
pagebuilder/assets/admin/js/admin.js
pagebuilder/assets/admin/js/editor.js
pagebuilder/assets/admin/js/googlemap.js
pagebuilder/assets/admin/js/repeater.js
pagebuilder/assets/admin/js/tab.js
pagebuilder/assets/css/function_list.css
pagebuilder/assets/css/googlemap.css
pagebuilder/assets/css/pagebuilder.css
pagebuilder/assets/css/simple_table.css
pagebuilder/assets/css/slider.css
pagebuilder/assets/css/tab.css
pagebuilder/modules/catchcopy.php
pagebuilder/modules/editor.php
pagebuilder/modules/functional_comparison.php
pagebuilder/modules/googlemap.php
pagebuilder/modules/headline.php
pagebuilder/modules/image.php
pagebuilder/modules/includes/slick.php
pagebuilder/modules/price_table.php
pagebuilder/modules/simple_table.php
pagebuilder/modules/slider.php
pagebuilder/modules/tab.php
pagebuilder/pagebuilder.php
style.css

【Added files】
admin/img/gmap_marker_type1.jpg
admin/img/gmap_marker_type2.jpg
pagebuilder/assets/admin/js/slider.js
pagebuilder/assets/js/googlemap.js

【Deleted files】
pagebuilder/assets/admin/css/admin_bk.css
pagebuilder/assets/admin/js/jscolor.js
pagebuilder/assets/img/slider_arrow1.png
pagebuilder/assets/img/slider_arrow2.png
pagebuilder/assets/js/slider.js
pagebuilder/modules/includes/jscolor.php