YARN-957. Fixed a bug in CapacityScheduler because of which requests that need more than a node's total capability were incorrectly allocated on that node causing apps to hang. Contributed by Omkar Vinit Joshi.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1520187 13f79535-47bb-0310-9956-ffa450edef68