Add easymock to SBT configuration.

project/SparkBuild.scala

@@ -92,7 +92,8 @@ object SparkBuild extends Build {
       "org.eclipse.jetty" % "jetty-server" % "7.5.3.v20111011",
       "org.scalatest" %% "scalatest" % "1.8" % "test",
       "org.scalacheck" %% "scalacheck" % "1.9" % "test",
-      "com.novocode" % "junit-interface" % "0.8" % "test"
+      "com.novocode" % "junit-interface" % "0.8" % "test",
+      "org.easymock" % "easymock" % "3.1" % "test"
     ),
     parallelExecution := false,
     /* Workaround for issue #206 (fixed after SBT 0.11.0) */