use enforcer plugin to require Maven 3
use enforcer plugin to require Maven 3

git-svn-id: 3ce6c1619699fe12d55b4c10157b8adc9fda1bac@1569933 13f79535-47bb-0310-9956-ffa450edef68

mohanaraosv/commons-weaver,mohanaraosv/commons-weaver