Update junitxml plugin to the latest version to avoid recompilation in every SBT command.

Author: Reynold Xin <rxin@apache.org>

Closes #104 from rxin/junitxml and squashes the following commits:

67ef7bf [Reynold Xin] Update junitxml plugin to the latest version to avoid recompilation in every SBT command.

project/plugins.sbt

@@ -19,3 +19,4 @@ addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.7.4")
 
 addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "0.4.0")
 
+addSbtPlugin("com.alpinenow" % "junit_xml_listener" % "0.5.0")

project/project/SparkPluginBuild.scala

-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import sbt._
-
-object SparkPluginDef extends Build {
-  lazy val root = Project("plugins", file(".")) dependsOn(junitXmlListener)
-  /* This is not published in a Maven repository, so we get it from GitHub directly */
-  lazy val junitXmlListener = uri(
-    "https://github.com/chenkelmann/junit_xml_listener.git#3f8029fbfda54dc7a68b1afd2f885935e1090016"
-  )
-}