Gems4 jls-grok 0.11.5 8,218,107 May 01, 2018 jls-lumberjack 0.0.26 7,194,736 October 19, 2015 filewatch 0.9.0 2,732,385 August 08, 2016 logstash-devutils 2.6.3 1,490,244 October 30, 2025