Multiple bug fixes

【Contents of the fix】
■Corrected the wording in the page builder.
■Fixed a bug that the preview may not work properly on pages using Page Builder.
■SSL support
■Support for PHP7
■Fixed a bug that TCD Theme Options > Basic Settings > Layout settings are not applied to fixed pages.
■Changed the specification so that recommended and popular articles are also displayed in the tag archive.

The following files have been modified for this update.
【Corrected files】
languages/ja.mo
languages/ja.po
pagebuilder/assets/admin/css/admin.css
pagebuilder/assets/css/slider.css
pagebuilder/modules/pricemenu.php
pagebuilder/pagebuilder.php
widget/category_list.php
widget/custom_drop_menu.php
widget/custom_menu.php
widget/google_search.php
widget/ranking_list.php
widget/styled_post_list1.php
widget/styled_post_list2.php
widget/styled_post_list3.php
widget/user_profile.php
functions.php
index.php
style.css