Fix post excerpt function only filter content on not singular page
Change sidebar widget title to h3 headline. Fix some minor bugs and style.
Fix change sidebar position preview
Add new option section: Singular Settings to change single pages, posts view setting, add option to allow user turn on or off tags
Add option to use built in default image for post without featured image. Default on
Change display post tags option from radio type to checkbox type, add option to show or hide post navigation