HADOOP-10064. Upgrade to maven antrun plugin version 1.7 (Arpit Agarwal via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1535265 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd