Quieter; reorganize gst pipeline code

Removed a bunch of print statements that looked like they were added for
debugging, then never removed.

Reorganized GStreamer pipeline code so that all configuration is done
when the pipeline is created.

blather.py

 
         self.recognizer.connect('finished', self.recognizer_finished)
 
-        print("Using Options: ", self.options)
-
     def read_commands(self):
         # Read the commands file
         file_lines = open(command_file)
         strings = open(strings_file, "w")
         for line in file_lines:
-            print(line)
             # Trim the white spaces
             line = line.strip()
             # If the line has length and the first char isn't a hash
             if len(line) and line[0]!="#":
                 # This is a parsible line
                 (key, value) = line.split(":", 1)
-                print(key, value)
                 self.commands[key.strip().lower()] = value.strip()
                 strings.write(key.strip() + "\n")
         # Close the strings file

recognizer.py

             audio_src = 'autoaudiosrc'
 
         # Build the pipeline
-        cmd = audio_src + ' ! audioconvert ! audioresample ! pocketsphinx name=asr ! appsink sync=false'
+        cmd = (
+            audio_src +
+            ' ! audioconvert' +
+            ' ! audioresample' +
+            ' ! pocketsphinx lm=' + language_file + ' dict=' +
+            dictionary_file + ' configured=true' +
+            ' ! appsink sync=false'
+        )
         try:
             self.pipeline = Gst.parse_launch(cmd)
         except Exception as e:
             print("You may need to install gstreamer1.0-pocketsphinx")
             raise e
 
+        # Process results from the pipeline with self.result()
         bus = self.pipeline.get_bus()
         bus.add_signal_watch()
-
-        # Get the Auto Speech Recognition piece
-        asr = self.pipeline.get_by_name('asr')
         bus.connect('message::element', self.result)
-        asr.set_property('lm', language_file)
-        asr.set_property('dict', dictionary_file)
-        asr.set_property('configured', True)
 
     def listen(self):
         self.pipeline.set_state(Gst.State.PLAYING)