CC-3131: Latency of stream authentication warning in Stream Settings page

- it compares boot time of liquidsoap and the time user clicks on "Save"
on stream setting page. The status only gets updated if the
"boot_time" > "user update time"
- as soon as a user click on save, status is set to "wating"
- since there is no timing issue, quering interval is reduced to 1 sec

airtime_mvc/application/controllers/PreferenceController.php

@@ -203,6 +203,11 @@ class PreferenceController extends Zend_Controller_Action
                 Application_Model_StreamSetting::setStreamSetting($values);
                 $data = array();
                 $data['setting'] = Application_Model_StreamSetting::getStreamSetting();
+                for($i=1;$i<=$num_of_stream;$i++){
+                    Application_Model_StreamSetting::setLiquidsoapError($i, "waiting");
+                }
+                // store stream update timestamp
+                Application_Model_Preference::SetStreamUpdateTimestamp();
                 Application_Model_RabbitMq::SendMessageToPypo("update_stream_setting", $data);
                 $this->view->statusMsg = "<div class='success'>Stream Setting Updated.</div>";
             }