dirble: 'AttributeError' while processing station stream dictionaries that have no 'content_type' key

[juanrubio]

[13:12:25] joni@galactus:tools $ tizonia --dirble-country ES
tizonia 0.5.0. Copyright (C) 2016 Juan A. Rubio
This software is part of the Tizonia project <http://tizonia.org>

[Dirble] [Station] 'Radio Mi Amigo International' [audio/mpeg].
[Dirble] [Station] 'Radio Mi Amigo International' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] [Station] 'Cadena SER - Valencia' [audio/mpeg].
[Dirble] (AttributeError) : 'NoneType' object has no attribute 'rstrip'

tizonia exiting (OMX_ErrorInsufficientResources).

 [OMX.Aratelia.audio_source.http:port:0]
 [OMX_ErrorInsufficientResources]