Fixes #3695

Guests now trigger topic notifications, and the translator has
been updated so that translations inside translations are
handled in a way that doesn't cause the translator to explode.

public/src/modules/translator.js

@@ -9,7 +9,7 @@
 
 	var	languages = {},
 		regexes = {
-			match: /\[\[\w+:.*?\]\]/g,
+			match: /\[\[\w+:[^\[]*?\]\]/g,
 			split: /[,][\s]*/,
 			replace: /\]+$/
 		};
@@ -153,7 +153,12 @@
 			translateKey(key, data, language, function(translated) {
 				--count;
 				if (count <= 0) {
-					callback(translated.text);
+					keys = translated.text.match(regexes.match);
+					if (!keys) {
+						callback(translated.text);
+					} else {
+						translateKeys(keys, translated.text, language, callback);
+					}
 				}
 			});
 		});

src/topics/create.js

@@ -252,10 +252,10 @@ module.exports = function(Topics) {
 				}
 
 				if (parseInt(uid, 10)) {
-					Topics.notifyFollowers(postData, uid);
 					user.setUserField(uid, 'lastonline', Date.now());
 				}
 
+				Topics.notifyFollowers(postData, uid);
 				plugins.fireHook('action:topic.reply', postData);
 
 				next(null, postData);