Merge branch '0.9.x' into minifyjs

lib/action.php

@@ -300,9 +300,11 @@ class Action extends HTMLOutputter // lawsuit
      * events and appending to the array. Try to avoid adding strings that won't be used, as
      * they'll be added to HTML output.
      */
+    
     function showScriptMessages()
     {
         $messages = array();
+	
         if (Event::handle('StartScriptMessages', array($this, &$messages))) {
             // Common messages needed for timeline views etc...
 
@@ -310,11 +312,14 @@ class Action extends HTMLOutputter // lawsuit
             $messages['showmore_tooltip'] = _m('TOOLTIP', 'Show more');
 
             $messages = array_merge($messages, $this->getScriptMessages());
-        }
+	    
 	    Event::handle('EndScriptMessages', array($this, &$messages));
-        if ($messages) {
+        }
+	
+        if (!empty($messages)) {
             $this->inlineScript('SN.messages=' . json_encode($messages));
         }
+	
         return $messages;
     }