bump to 4.1.0

dependency logstash-core-plugin-api >= 1.60 <= 2.99

Make sure the plugins 2.0 feature branch is merged into this plugin

version 4.0.0

bump version to 2.0.5

dependency logstash-core-plugin-api ~> 1.0

dependency logstash-core >= 2.0.0.beta2 < 3.0.0

dependency logstash-core >= 2.0.0.snapshot < 3.0.0

Declare a dependency on logstash-core snapshot instead of the release…

… version

version 0.4.0 bump

Fixes logstash-plugins#100