Latest version of org.specs2:specs2-matcher-extra_2.11
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.11
Current version 4.10.6
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.11/4.10.6
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.specs2/specs2-matcher-extra_2.11/4.10.6/package-list