Pass always str instances to StringIO (fixes problems in python2.6)
Pass always str instances to StringIO (fixes problems in python2.6)

jpajuelo/wirecloud,jpajuelo/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud,jpajuelo/wirecloud,jpajuelo/wirecloud