YARN-2228. Augmented TimelineServer to load pseudo authentication filter when authentication = simple. Contributed by Zhijie Shen.
svn merge --ignore-ancestry -c 1610575 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1610576 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5790. Made it easier to enable hprof profile options by default. Contributed by Gera Shegalov.
svn merge --ignore-ancestry -c 1610578 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1610579 13f79535-47bb-0310-9956-ffa450edef68