How to change sbt version?
<p>I would like to set the sbt version. I tried doing this by creating a file <code>project/build.properties</code> in my project and added the line</p>

<pre><code>sbt.version=0.13.13
</code></pre>

<p>but IntelliJ tells me</p>

<blockquote>
  <p>unused property</p>
</blockquote>

<p>What am I to do to get IntelliJ to use a different sbt version?</p>