IndexTask: Print metrics even if finishJob fails
Merge pull request #347 from metamx/finishJob-metrics

IndexTask: Print metrics even if finishJob fails
ForkingTaskRunnerConfig: Add java.io.tmpdir to allowedPrefixes
RealtimeIndexTask: If a Throwable was thrown it is not a normalExit
ForkingTaskRunner: Upload task logs even when job fails
Merge pull request #349 from metamx/indexing-stuff

Indexing stuff
LinearShardSpec, NumberedShardSpec toString methods
IndexTask: Better logging at the end of each segment
inital commit of topNs
remove unnecessary doc line
Merge pull request #350 from metamx/topN

Approximate TopN Query
clean up doc
Merge branch 'master' into az