title: IDEA complains about Revolver.settings when trying to parse spray-template's build.sbt file
body: <p>I've cloned the Spray template project (branch <code>on_spray-can_1.1</code>) as suggested on Spray's "<a href="http://spray.io/introduction/getting-started/">Getting Started</a>" page, and used <a href="https://github.com/mpeltonen/sbt-idea">sbt-idea</a> to generate a corresponding IDEA project. It builds fine, but when I open my <code>build.sbt</code> file, the last line makes IDEA unhappy:</p>
  
  <pre><code>seq(Revolver.settings: _*)
  </code></pre>
  
  <p>It doesn't recognize <code>Revolver</code>, and suggests importing <code>spray.revolver.RevolverPlugin.Revolver</code>, which seems reasonable. However, when I do that, it still complains "Expression type (Def.SettingsDefinition) must conform to Setting[_] in SBT file".</p>
  
  <p>Clearly this is not a real problem, or IDEA's (external) make would fail, and/or SBT would complain from the command line. But why does IDEA think it's a problem? Has something changed in recent versions of SBT?</p>
  
  <p>When I look at the SBT 0.13.0 source I notice <code>seq</code> is deprecated; it says "In build.sbt files, this call can be removed." If I do that, however, Revolver stops working ("Not a valid command: re-start").</p>
  
  <p>FWIW, I'm using SBT 0.13.0 with Scala 2.10.3 and IDEA 12.1.6 on Mint 14.</p>