Gems4 jls-grok 0.11.5 8,314,833 May 01, 2018 jls-lumberjack 0.0.26 7,245,829 October 19, 2015 filewatch 0.9.0 2,735,294 August 08, 2016 logstash-devutils 2.6.3 1,543,738 October 30, 2025