title: publish jar files with sbt (3rd party)
body: <p>Hello I have 5 jar files and tried to publish them to a local repository with sbt.
  But when I place them in unmanagedBase directory like <code>lib/</code> they won't get copied with <code>publishLocal</code>. Is there an easy way to include them in the publishing process?</p>
  
  <p>Currently maven has a similar solution here:
  <a href="http://maven.apache.org/guides/mini/guide-3rd-party-jars-local.html" rel="noreferrer">http://maven.apache.org/guides/mini/guide-3rd-party-jars-local.html</a></p>