Added rsyslog to list of users
auto.commit.enable doc update
Dont leak topic_conf memory when already added topic is passed to rd_kafka_topic_new()
mklove update for mktemp (issue #176)
Update README.md
Fixed double-free of conf (defect added in ce8cd60ba4fec8d)
Dont log broker signal interrupts when terminating
Added conf: delivery.report.only.error

Setting this to true purges delivery reports for succesfully
transferred messages.
Enabled multi-OS builds for travis-ci