Merge pull request influxdata#2319 from influxdata/fix/kafka-log

fix(kafka): update kafka lib; make kafka errors unsilent

cut v1.5.4

cut v1.5.3

cut v1.5.3-rc4

cut v1.5.3-rc3

cut v1.5.3-rc2

cut v1.5.3-rc1

cut v1.5.3-rc0

cut v1.5.2-rc1