bump version to 1.1.0beta8
bump version to 1.1.0beta8

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