HADOOP-9833 move slf4j to version 1.7.5

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1512026 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5047. Supress logging of full stack trace of quota and lease exceptions. Contributed by Robert Parker.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1512057 13f79535-47bb-0310-9956-ffa450edef68
YARN-1043. Push all metrics consistently. Contributed by Jian He.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1512081 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-YAHOO-286-trunk-gd