This commit contains the following JIRA issues:
HADOOP-12931. bin/hadoop work for dynamic subcommands
HADOOP-12932. bin/yarn work for dynamic subcommands
HADOOP-12933. bin/hdfs work for dynamic subcommands
HADOOP-12934. bin/mapred work for dynamic subcommands
HADOOP-12935. API documentation for dynamic subcommands
HADOOP-12936. modify hadoop-tools to take advantage of dynamic subcommands
HADOOP-13086. enable daemonization of dynamic commands
HADOOP-13087. env var doc update for dynamic commands
HADOOP-13088. fix shellprofiles in hadoop-tools to allow replacement
HADOOP-13089. hadoop distcp adds client opts twice when dynamic
HADOOP-13094. hadoop-common unit tests for dynamic commands
HADOOP-13095. hadoop-hdfs unit tests for dynamic commands
HADOOP-13107. clean up how rumen is executed
HADOOP-13108. dynamic subcommands need a way to manipulate arguments
HADOOP-13110. add a streaming subcommand to mapred
HADOOP-13111. convert hadoop gridmix to be dynamic
HADOOP-13115. dynamic subcommand docs should talk about exit vs. continue program flow
HADOOP-13117. clarify daemonization and security vars for dynamic commands
HADOOP-13120. add a --debug message when dynamic commands have been used
HADOOP-13121. rename sub-project shellprofiles to match the rest of Hadoop
HADOOP-13129. fix typo in dynamic subcommand docs
HADOOP-13151. Underscores should be escaped in dynamic subcommands document
HADOOP-13153. fix typo in debug statement for dynamic subcommands
Yiqun Lin
Erik Krogen
Subru Krishnan
Steve Loughran
Allen Wittenauer
Andrew Wang
Gábor Lipták
Karthik Kambatla
Alejandro Abdelnur
Thomas Graves
Eli Collins
Robert Joseph Evans