Revision 1619523

HADOOP-10607. Addendum, bringing in changes, KMS related, which were left out in the original merge.


Conflicts:
	hadoop-common-project/hadoop-common/src/main/bin/hadoop
	hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
	hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/alias/CredentialShell.java
	hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/alias/JavaKeyStoreProvider.java
	hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/alias/TestCredShell.java