Latest version of com.typesafe.akka:akka-docs_2.11.0-M3
https://javadoc.io/doc/com.typesafe.akka/akka-docs_2.11.0-M3
Current version 2.2.0
https://javadoc.io/doc/com.typesafe.akka/akka-docs_2.11.0-M3/2.2.0
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.typesafe.akka/akka-docs_2.11.0-M3/2.2.0/package-list