allow blocking until a message is available from the consumer
allow blocking until a message is available from the consumer

jofusa/pykafka,fortime/pykafka,wikimedia/operations-debs-python-pykafka,benauthor/pykafka,sammerry/pykafka,thedrow/samsa,benauthor/pykafka,fortime/pykafka,thedrow/samsa,wikimedia/operations-debs-python-pykafka,jofusa/pykafka,vortec/pykafka,appsoma/pykafka,thedrow/samsa,tempbottle/pykafka,aeroevan/pykafka,wikimedia/operations-debs-python-pykafka,appsoma/pykafka,yungchin/pykafka,yungchin/pykafka,sontek/pykafka,aeroevan/pykafka,benauthor/pykafka,tempbottle/pykafka,vortec/pykafka,sammerry/pykafka,sontek/pykafka