minor fixes

-don't show print subprocess commands to py-interpreter.log

python_apps/pypo/media/update/replaygain.py

@@ -21,7 +21,7 @@ def run_process(command):
     """
     Run subprocess and return "return code"
     """
-    p = Popen(command)
+    p = Popen(command, stdout=PIPE, stderr=PIPE)
     return os.waitpid(p.pid, 0)[1]
 
 def get_mime_type(file_path):

python_apps/pypo/media/update/silananalyzer.py

@@ -18,7 +18,6 @@ class SilanAnalyzer(Thread):
     def start_silan(apc, logger):
         me = SilanAnalyzer(apc, logger)
         me.start()
-        me.join()
 
     def __init__(self, apc, logger):
         Thread.__init__(self)