remove unused line in testGetEvaluatorList
Closing #930: Add Idempotent annotation.

Also updating the license headers.
Closing #932: A .toString for JobMessage
Merge pull request #939 from Microsoft-CISL/weimer_930

Closing #930: Add Idempotent annotation.
Merge pull request #940 from Microsoft-CISL/weimer_932

Closing #932: A .toString for JobMessage
Merge pull request #847 from Microsoft-CISL/yingdac_updatehadoop_846

update hadoop dependency to 2.4.0
add a recovery flag to proto to indicates communications from orphan evaluators for recovery
minor format change and bug fixing
remove unnecessary hasRecovery check
undo mutable evaluatorId change
Merge pull request #916 from Microsoft-CISL/juwang-httptestfix

juwang-remove unused line in testGetEvaluatorList
Merge branch 'yingdac-add-recovery-flag' into reef-bridge
Merge pull request #941 from Microsoft-CISL/yingdac-add-recovery-flag

add a recovery flag to proto to indicates communications from orphan eva...
Merge remote-tracking branch 'origin' into reef-bridge