CC-3245: upgrade 1.8->2.0 cause error in show recorder

- new cofig field was missing from recorder.cfg.200
- better log when execption happens

install_minimal/upgrades/airtime-2.0.0/recorder.cfg.200

@@ -25,3 +25,5 @@ record_samplerate = 44100
 record_channels = 2
 record_sample_size = 16
 
+#can be either ogg|mp3, mp3 recording requires installation of the package "lame"
+record_file_type = 'ogg'

python_apps/show-recorder/recorder.py

@@ -270,13 +270,15 @@ class CommandListener():
                      'hour': start_time_on_server.hour, 'min': start_time_on_server.minute, 'sec': start_time_on_server.second}
                 self.sr = ShowRecorder(show_instance, show_name, show_length.seconds, start_time_formatted)
                 self.sr.start()
-
                 #remove show from shows to record.
                 del self.shows_to_record[start_time]
                 time_till_next_show = self.get_time_till_next_show()
                 self.time_till_next_show = time_till_next_show
             except Exception,e :
-                self.logger.error(e)
+                import traceback
+                top = traceback.format_exc()
+                self.logger.error('Exception: %s', e)
+                self.logger.error("traceback: %s", top)
         else:
             self.logger.debug("No recording scheduled...")