Throw FetchFailedException for cached missing locs
Additional tests for MapOutputTracker.
Fix accidental spark.master.host reuse
Call executeOnCompleteCallbacks in a finally block.
Add a test.
Merge pull request #377 from stephenh/executeOnCompleteCallbackInFinally

Call executeOnCompleteCallbacks in a finally block.
Changed teh scala version to 2.9.2, so that the classes can be found when the classpath is expanded.
Remove broken attempt to test fetching case.
Merge pull request #378 from apsaltis/master

Updated SCALA_VERSION in run2.cmd to match runtime version of Scala
Merge pull request #374 from woggling/null-mapout

Generate FetchFailedException even for cached missing map outputs