HBASE-10313 Duplicate servlet-api jars in hbase 0.96.0

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1565730 13f79535-47bb-0310-9956-ffa450edef68
HBASE-5356 region_mover.rb can hang if table region it belongs to is deleted

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HBASE-10480 TestLogRollPeriod#testWithEdits may fail due to insufficient waiting

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HBASE-10472 Manage the interruption in ZKUtil#getData

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HBASE-10439 Document how to configure REST server impersonation

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HBASE-10482 ReplicationSyncUp doesn't clean up its ZK, needed for tests

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