KafkaJolokiaCollector blacklist still needs tuning.

[Grumblesmith]

The

metrics_blacklist = ..network..|.java.(nio|lang.(MemoryPool.(G1|Compressed|Code)|OperatingSystem|Garbage)).|.Percentile$|.FifteenMinuteRate.|.FiveMinuteRate.|..MeanRate$|..OneMinuteRate.|..StdDev$|.Metadata.|.__consumer_offsets.|..(Min|Max)$

is still too broad.