Only run functional tests when Kafka is available. Require that when ENV[CI] is set.
Only run functional tests when Kafka is available. Require that when ENV[CI] is set.

remerge/sarama,Shopify/sarama,kmiku7/sarama,cep21/sarama,winlinvip/sarama,yangfan876/sarama,scalingdata/sarama,scalingdata/sarama,DataDog/sarama,yangfan876/sarama,rafrombrc/sarama,Shopify/sarama,gyroscope-innovations/legacy_sarama,uovobw/sarama,betable/sarama,DataDog/sarama,vrischmann/sarama,aybabtme/sarama,pronix/sarama,aybabtme/sarama,kmiku7/sarama,kraveio/sarama,raisemarketplace/sarama,winlinvip/sarama,jepst/sarama,uovobw/sarama,Neuw84/sarama,kraveio/sarama,HelixEducation/sarama,HelixEducation/sarama,VividCortex/sarama,remerge/sarama,LastManStanding/sarama,rafrombrc/sarama,raisemarketplace/sarama,VividCortex/sarama,mailgun/sarama,jimmykuo/sarama,vrischmann/sarama,LastManStanding/sarama,mailgun/sarama,jimmykuo/sarama,cep21/sarama,Neuw84/sarama,crast/sarama,crast/sarama,betable/sarama,jepst/sarama,gyroscope-innovations/legacy_sarama,pronix/sarama