Maven warning on Scala versions

[ashawley]

This is reproduced in the maven example here:

$ mvn -P scala-2.11 compile
[WARNING]  Expected all dependencies to require Scala version: 2.11.8
[WARNING]  sample:scala-module-dependency-sample:1.0-SNAPSHOT requires scala version: 2.11.8
[WARNING]  org.scala-lang.modules:scala-xml_2.11:1.0.6 requires scala version: 2.11.8
[WARNING]  org.scala-lang.modules:scala-parser-combinators_2.11:1.0.4 requires scala version: 2.11.6
[WARNING] Multiple versions of scala libraries detected!

Should probably be a way to use the maven archetypes to see what the new XML should be:

https://docs.scala-lang.org/tutorials/scala-with-maven.html

Reported at scala/bug#11176