HDFS-4374: beginning work on display
Merge branch 'HDFS-4249' into HDFS-4374
Merge branch 'HDFS-4249' into HDFS-4374
HDFS-4374: update layout for NameNode startup progress display
Merge branch 'HDFS-4249' into HDFS-4374
HDFS-4374: UI layout cleanup and checks for null FSNamesystem
Merge branch 'HDFS-4249' into HDFS-4374
Merge branch 'HDFS-4372' into HDFS-4249
MAPREDUCE-4994. -jt generic command line option does not work. (sandyr via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1445330 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4372: simplify passing around NameNodeStartupProgress
Merge branch 'HDFS-4372' into HDFS-4249
MAPREDUCE-4989. JSONify DataTables input data for Attempts page. Contributed by Ravi Prakash


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1445448 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4992. AM hangs in RecoveryService when recovering tasks with speculative attempts. Contributed by Robert Parker


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1445456 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9302. HDFS docs not linked from top level (Andy Isaacson via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1445635 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9303. command manual dfsadmin missing entry for restoreFailedStorage option (Andy Isaacson via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1445656 13f79535-47bb-0310-9956-ffa450edef68
YARN-249. Capacity Scheduler web page should show list of active users per queue like it used to (in 1.x) (Ravi Prakash via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1445673 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4372: big refactoring to simplify plugging into metrics for JMX and make the display logic easier
Merge branch 'HDFS-4372' into HDFS-4249
Merge branch 'trunk' into HDFS-4249