HADOOP-10563. Fix bad merge which messed up hadoop-common/CHANGES.txt.
HADOOP-11286. Copied LimitInputStream from guava-0.14 to hadoop to avoid issues with newer versions of guava in applications. Contributed by Christopher Tubbs.

(cherry picked from commit 6caa8100d5d2547e34356dc279fd5e65b81a925a)
YARN-2830. Add backwords compatible ContainerId.newInstance constructor. Contributed by Jonathan Eagles.

(cherry picked from commit 43cd07b408c6613d2c9aa89203cfa3110d830538)
HADOOP-10786. Fix UGI#reloginFromKeytab on Java 8. Contributed by Stephen Chu.
HDFS-7383. DataNode.requestShortCircuitFdsForRead may throw NullPointerException. Contributed by Tsz Wo Nicholas Sze.
HADOOP-10786. Moved to hadoop-2.7.X.

(cherry picked from commit 14b87b70a8dfc03801dcf5f33caa7fd2cc589840)
HDFS-7383. Moved the jira from release 2.7.0 section to 2.6.0 in CHANGES.txt
HDFS-7383. Merged to branch-2.6 also.

(cherry picked from commit f62ec31739cc15097107655c6c8265b5d3625817)
Revert "HDFS-7383. Merged to branch-2.6 also."

This reverts commit 755af2768b2be1ded532e795db30ec0bfea03e66.
Updated CHANGES.txt to reflect hadoop-2.6.0 release dates.

(cherry picked from commit 770cc144425b6188d9b93178c77a35cd830a60df)
YARN-2834. Fixed ResourceManager to ignore token-renewal failures on recovery consistent with the (somewhat incorrect) behaviour in the non-recovery case. Contributed by Jian He.

(cherry picked from commit e76faebc9589654e83c8244ef9aff88391e56b80)
Fix broken download of directories

(cherry picked from commit 745c9a01243b8eefc72d89d1164d7d010b80983b)
Release Notes for hadoop-2.6.0.
Preparing to release hadoop-2.6.0: Set version in branch-2 to 2.7.0-SNAPSHOT.
Merge remote-tracking branch 'remotes/origin/branch-2' into branch-2