Upgraded to kafka 1.0. This is IMPORTANT for on premises installations. It requires updating the kafka docker image before updating the humio docker image

New parameter timechart(limit=N) chooses the "top N charts" selected as the charts with the most area under them. When unspecified, limit value defaults to .0, and produces a warning if exceeded. When specified explicitly, no warning is issued.

Filter functions can now generically be negated !/foo/, !cidr(...), !in(...), etc.