Added support of Hadoop 2.7.0 to MapR plugin
Added support of Hadoop 2.7.0 to MapR plugin

Change-Id: I29a7e799b7b7e096bc3f868d54fe9ff7ed854a49
Implements: blueprint mapr-hadoop-270

openstack/sahara,openstack/sahara,zhangjunli177/sahara,crobby/sahara,crobby/sahara,tellesnobrega/sahara,zhangjunli177/sahara,egafford/sahara,crobby/sahara,zhangjunli177/sahara,egafford/sahara,tellesnobrega/sahara