public static function remove_posts()
 {
     self::$crayon_posts = array();
     self::save_posts();
 }
 public static function load_posts()
 {
     if (self::$crayon_posts === NULL) {
         // Load from db
         if (!(self::$crayon_posts = get_option(self::POSTS))) {
             // Posts don't exist! Scan for them. This will fill self::$crayon_posts
             self::$crayon_posts = CrayonWP::scan_posts();
             update_option(self::POSTS, self::$crayon_posts);
         }
     }
     return self::$crayon_posts;
 }