CC-3168: Stream Settings: "Vorbis Metadata" confusing string

Done

airtime_mvc/application/forms/StreamSetting.php

@@ -38,8 +38,17 @@ class Application_Form_StreamSetting extends Zend_Form
             $this->addElement($output_type);
         }
         
+        # tooltip
+        $description = 'VLC and mplayer have a serious bug when playing an OGG/VORBIS 
+                    stream that has metadata information enabled (stream metadata is the 
+                    track title, show name, etc displayed in the audio player): they will 
+                    disconnect from the stream after every song if this option is enabled. 
+                    If your listeners do not require support for these audio players, 
+                    then you should enable this option.';
+        
         $icecast_vorbis_metadata = new Zend_Form_Element_Checkbox('icecast_vorbis_metadata');
         $icecast_vorbis_metadata->setLabel('Icecast Vorbis Metadata')
+                                ->setDescription($description)
                                 ->setRequired(false)
                                 ->setValue(($setting['icecast_vorbis_metadata'] == "true")?1:0)
                                 ->setDecorators(array('ViewHelper'));