YARN-1277. Added a policy based configuration for http/https in common HttpServer and using the same in YARN - related
to per project https config support via HADOOP-10022. Contributed by Suresh Srinivas and Omkar Vinit Joshi.
svn merge --ignore-ancestry -c 1529662 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1529663 13f79535-47bb-0310-9956-ffa450edef68