title: IntelliJ Scala Plugin's case class indentation is absurd
body: <p>When a case class has many fields and their names are long, it is often a good idea to write each field in each line like:</p>
  
  <pre><code>case class Person (
    name: String,
    age: Int
  )
  </code></pre>
  
  <p>This resembles C/C++ <code>struct</code> definition and totally readable even when the case class becomes bigger. But IntelliJ IDEA's default Scala plugin automatically changes its indentation:</p>
  
  <pre><code>case class Person (
                      name: String,
                      age: Int
                      )
  </code></pre>
  
  <p>which looks weird to me, but the <a href="http://docs.scala-lang.org/style/indentation.html" rel="noreferrer">Scala Style Guide</a> doesn't mention anything about case class indentation.</p>
  
  <p>I couldn't find anything in the IDE settings that can change this behaviour. Is there an option to make the auto-indentation work like the way I described above or disable auto-indentation for case classes?</p>