Add Bookmarks table
Display bookmarks
Add star.png
Remove ss-box
Toggle a display of star
Implement Database#add_bookmark
Implement the POST '/command' favorite
Fix a bug of the bookmarks view
Implement Database#delete_bookmark
Bookmark any page
Reflect bookmark to a star
Display a star in the text_page view
Display a star in the text_all view
Tweak the highlight-color
Display with a page text in the bookmark view
Sort the bookmark list by date
Unlink a current mode
Display a bookmark number in the book mode
Not display a 'x books' in the search result of book
Return src if keywords is nil