THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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FLINK-2674 Rework windowing logic
FLINK-2674 Rework windowing logicFLINK-2491 Operators are not participating in state checkpointing in some cases
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FLINK-2066 Make delay between execution retries configurable [pending pull request]
CRITICAL
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FLINK-2771 IterateTest.testSimpleIteration fails on Travis
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