title: Changing the Scala version in Zeppelin
body: <p>I'm using an external Jar that doesn't work properly with any version of Scala above 2.10.4. However, by looking at the Scala Jar files, I have seen that the version of Scala I'm using is 2.11. Is it possible to downgrade the Scala version to 2.10.4 without replacing the Scala Jar files?</p>