Latest version of org.specs2:specs2-matcher-extra_2.10
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.10
Current version 2.3.3-scalaz-7.1.0-M3
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.10/2.3.3-scalaz-7.1.0-M3
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.10/2.3.3-scalaz-7.1.0-M3/package-list