- fix a silly bug preventing filters from passing events properly.
- fix a silly bug preventing filters from passing events properly.

tinglinux/logstash-kafka,Aloomaio/logstash-kafka,opentable/logstash-kafka,joekiller/logstash-kafka,opentable/logstash-kafka,Aloomaio/logstash-kafka,joekiller/logstash-kafka,tinglinux/logstash-kafka