Removed unused return value in SparkContext.runJob
Attempt to fix SparkListenerSuite breakage

Could not reproduce locally, but this test could've been flaky if the
build machine was too fast.
Merge pull request #145 from aarondav/sls-fix

Attempt to fix SparkListenerSuite breakage

Could not reproduce locally, but this test could've been flaky if the build machine was too fast, due to typo. (index 0 is intentionally slowed down to ensure total time is >= 1 ms)

This should be merged into branch-0.8 as well.
Merge pull request #144 from liancheng/runjob-clean

Removed unused return value in SparkContext.runJob

Return type of this `runJob` version is `Unit`:

    def runJob[T, U: ClassManifest](
        rdd: RDD[T],
        func: (TaskContext, Iterator[T]) => U,
        partitions: Seq[Int],
        allowLocal: Boolean,
        resultHandler: (Int, U) => Unit) {
        ...
    }

It's obviously unnecessary to "return" `result`.