Merge pull request #41 from shimingfei/yarn

modify for cdh5 with Yarn
Merge pull request #42 from shimingfei/yarn

modify in hibench-config.sh
Changes to Yarn branch from Cloudera for CDH5 and MR2
Changes based on shimingfei's review comments
Merge pull request #44 from nishkamravi2/yarn

Changes to Yarn branch for CDH5 and MR2
rebuild mahout against hadoop2.2.0