title: Sbt native packager not finding SystemdPlugin
body: <p>I'm trying to get an rpm built that uses the Systemd archetype.  However, I'm getting errors on my import in build.sbt. I am using sbt version 0.13.11 Specifically, I am seeing:</p>
  
  <pre><code>build.sbt:3: error: object systemloader is not a member of package com.typesafe.sbt.packager.archetypes
  </code></pre>
  
  <p>I'm trying to use version 1.1.4 of sbt-native-packager.  Here is my plugins.sbt:</p>
  
  <pre><code>// The Typesafe repository
  resolvers += "Typesafe repository" at "http://repo.typesafe.com/typesafe/releases/"
  
  // The Sonatype snapshots repository
  resolvers += "Sonatype snapshots" at "https://oss.sonatype.org/content/repositories/snapshots/"
  
  addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.1.4")
  </code></pre>
  
  <p>My build.sbt:</p>
  
  <pre><code>import com.typesafe.sbt.packager.linux.LinuxSymlink
  import com.typesafe.sbt.packager.rpm.RpmPlugin.autoImport._
  import com.typesafe.sbt.packager.archetypes.systemloader._
  
  scalaVersion := "2.11.7"
  
  name := "systemdtest"
  
  organization := "myTestOrg"
  
  enablePlugins(JavaServerAppPackaging, RpmPlugin, SystemdPlugin)
  
  version := "1.0"
  
  // RPM SETTINGS
  rpmVendor := "me"
  
  packageSummary in Linux := "A summary"
  
  packageDescription := "Do some stuff"
  
  rpmRelease := "1"
  
  rpmBrpJavaRepackJars := false
  
  rpmLicense := Some("Copyright this project")
  
  rpmGroup := Some("mygroup")
  
  rpmPrefix := Some("/opt/mypath")
  </code></pre>
  
  <p>I am getting the error when I try to run</p>
  
  <pre><code>sbt stage
  </code></pre>
  
  <p>or</p>
  
  <pre><code>sbt rpm:packageBin
  </code></pre>