MR1: CLOUDERA-BUILD. Backport fixes from MAPREDUCE-323 to allow under…

…scores in usernames and jobnames

Reason: Customer request
Ref: CDH-11431
Author: Karthik Kambatla
(cherry picked from commit 0fafe10)

Preparing for CDH4.2.1 release

Preparing for CDH4.2.1 release

Preparing for CDH4.1.4 release

Preparing for CDH4.1.4 release

CLOUDERA-BUILD. JT HA: job is not recovered when jt transitions to ac…

…tive then to standby and then to active (follow up)

Reason: Bug
Ref: CDH-10365
Author: Tom White

HADOOP-9303. command manual dfsadmin missing entry for restoreFailedS…

…torage option (Andy Isaacson via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1445657 13f79535-47bb-0310-9956-ffa450edef68
(cherry picked from commit 00b2b7f)

Preparing for CDH4.1.3 release

Preparing for CDH4.1.3 release

Preparing for CDH4.1.2 release.