SBT configs to use Jetty 8.1.x

WebAppWithJetty.scala

import sbt._
import Keys._
import com.github.siasia._
import WebPlugin._
import WebappPlugin._
import PluginKeys._

object WebAppWithJetty extends Build {

  lazy val root = Project(
    "Web App with Jetty 8",
    file(".")
  ) settings(coreSettings ++ coreWebSettings: _*)

  lazy val commonSettings: Seq[Setting[_]] = Seq(
    organization := "njalldev",
    name := "jetty8WebApp",
    version := "0.1-SNAPSHOT",
    scalaVersion := "2.9.2",
    scalacOptions ++= Seq("-encoding", "UTF-8", "-deprecation", "-unchecked", "-g:vars")
  )

    lazy val coreWebSettings = webSettings ++ inConfig(Runtime)(webappSettings0) ++ Seq(
        classpathTypes ~= (_ + "orbit"),
        libraryDependencies ++= Seq(
            "org.eclipse.jetty" % "jetty-server" % "8.1.4.v20120524" % "container",
            "org.eclipse.jetty" % "jetty-webapp" % "8.1.4.v20120524" % "container",
            "org.eclipse.jetty" % "jetty-jsp" % "8.1.4.v20120524" % "container",
            orbitDep("javax.servlet", "3.0.0.v201112011016"),
            orbitDep("javax.servlet.jsp", "2.2.0.v201112011158"),
            orbitDep("org.apache.jasper.glassfish", "2.2.2.v201112011158"),
            orbitDep("javax.servlet.jsp.jstl", "1.2.0.v201105211821"),
            orbitDep("org.apache.taglibs.standard.glassfish", "1.2.0.v201112081803"),
            orbitDep("javax.el", "2.2.0.v201108011116"),
            orbitDep("com.sun.el", "2.2.0.v201108011116"),
            orbitDep("org.eclipse.jdt.core", "3.7.1")
        )
    )

  lazy val coreSettings: Seq[Setting[_]] = commonSettings ++ Seq(
    libraryDependencies ++= Seq(
      "javax.servlet" % "servlet-api" % "2.5" % "provided",
      "javax.servlet.jsp" % "jsp-api" % "2.1" % "provided",
      "br.com.caelum" % "vraptor" % "3.4.1" excludeAll (
        ExclusionRule(organization = "org.springframework")
      ),
      "org.specs2" %% "specs2" % "1.11"
    ),
    classDirectory in Compile <<= webappDir {
      _ / "WEB-INF" / "classes"
    }
  )

    lazy val webappDir = baseDirectory {
        _ / "src" / "main" / "webapp"
    }

    def orbitDep(name:String, version:String) =  "org.eclipse.jetty.orbit" % name % version % "container" artifacts (Artifact(name, "jar", "jar"))
}