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

relax dependencies on mixin, current mixin is 4.0

version 3.0.0

dependency logstash-core-plugin-api ~> 1.0

Bump version to better support HTTP keepalive

Fixes logstash-plugins#32

Clarify sections of code re: async behavior

bump version to 1.1.1

constrains manticore to version < 0.5

Fixes logstash-plugins#25

dependency logstash-core >= 2.0.0.beta2 < 3.0.0

bump version to 2.0.3