Really upgrade to SBT 0.11.1 (through build.properties and plugin changes)

project/SparkBuild.scala

 import sbt._
 import Keys._
-import sbtassembly.Plugin.{assemblySettings, Assembly}
+import sbtassembly.Plugin._
+import AssemblyKeys._
 
 object SparkBuild extends Build {
 
@@ -49,7 +50,7 @@ object SparkBuild extends Build {
       "com.google.protobuf" % "protobuf-java" % "2.3.0",
       "de.javakaffee" % "kryo-serializers" % "0.9"
     )
-  ) ++ assemblySettings ++ Seq(test in Assembly := {})
+  ) ++ assemblySettings ++ Seq(test in assembly := {})
 
   def replSettings = sharedSettings ++ Seq(
     name := "spark-repl",

project/build.properties

-sbt.version=0.11.0
+sbt.version=0.11.1

project/plugins.sbt

@@ -7,4 +7,4 @@ addSbtPlugin("com.github.mpeltonen" % "sbt-idea" % "0.11.0")
 
 addSbtPlugin("com.typesafe.sbteclipse" % "sbteclipse" % "1.4.0")
 
-addSbtPlugin("com.eed3si9n" %% "sbt-assembly" % "0.6")
+addSbtPlugin("com.eed3si9n" %% "sbt-assembly" % "0.7.2")