CC-3483: Live Stream: default fade in/out for live stream transition

- take care of bootstrap of pypo

airtime_mvc/application/controllers/ApiController.php

@@ -1009,6 +1009,7 @@ class ApiController extends Zend_Controller_Action
         $this->view->switch_status = $res;
         $this->view->station_name = Application_Model_Preference::GetStationName();
         $this->view->stream_label = Application_Model_Preference::GetStreamLabelFormat();
+        $this->view->transition_fade = Application_Model_Preference::GetDefaultTransitionFade();
     }
     
     /* This is used but Liquidsoap to check authentication of live streams*/

python_apps/pypo/pypofetch.py

@@ -155,6 +155,7 @@ class PypoFetch(Thread):
             self.switch_source(k, v)
         self.update_liquidsoap_stream_format(info['stream_label'])
         self.update_liquidsoap_station_name(info['station_name'])
+        self.update_liquidsoap_transition_fade(info['transition_fade'])
             
     def regenerateLiquidsoapConf(self, setting_p):
         existing = {}