new language string

public/language/en_GB/global.json

@@ -65,6 +65,7 @@
 	"posted_in_ago": "posted in <a href=\"%1\"><i class=\"fa %2\"></i> %3</a> <span class=\"timeago\" title=\"%4\"></span>",
 	"replied_ago": "replied <span class=\"timeago\" title=\"%1\"></span>",
 	"user_posted_ago": "<a href=\"%1\" itemprop=\"author\">%2</a> posted <span class=\"timeago\" title=\"%3\"></span>",
+	"guest_posted_ago": "<a href=\"#\" itemprop=\"author\">Guest</a> posted <span class=\"timeago\" title=\"%1\"></span>",
 	"last_edited_by_ago": "last edited by <strong><a href=\"%1\">%2</a></strong> <span class=\"timeago\" title=\"%3\"></span>",
 
 	"norecentposts": "No Recent Posts",

public/language/en_GB/topic.json

@@ -7,7 +7,7 @@
 	"no_posts_found": "No posts found!",
 
 	"profile": "Profile",
-	"posted_by": "Posted by",
+	"posted_by": "Posted by %1",
 	"chat": "Chat",
 	"notify_me": "Be notified of new replies in this topic",
 	"quote": "Quote",