title: Using a Scala library that is only available for an older Scala version
body: <p>I am new to Scala. However, I a created a medium size program with <strong>Scala 2.9.0</strong>. Now I want to use an open source library which is only available for <strong>Scala 2.7.7</strong>. </p>
  
  <p>Is it <strong>possible</strong> to use this 2.7.7 library in my Scala 2.9.0 program? How can I do it? I had already a look at sbt but did not really succeed. Has someone a <strong>hello world example for this</strong>?</p>