PIG-3109: Missing license headers (jarcec via cheolsoo)


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PIG-2645 PigSplit does not handle the case where SerializationFactory returns null


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PIG-3139: Document reducer estimation (billgraham)

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PIG-3140: Document PigProgressNotificationListener configs (billgraham)

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PIG-3147: Spill failing with "java.lang.RuntimeException: InternalCachedBag.spill() should not be called"

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Preparing for release 0.11.0

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