update examples to more reasonable values

git-svn-id: https://svn.apache.org/repos/asf/maven/enforcer/trunk@1609913 13f79535-47bb-0310-9956-ffa450edef68
[MENFORCER-192]
 - Updated all @since entries according to the current version.

git-svn-id: https://svn.apache.org/repos/asf/maven/enforcer/trunk@1612216 13f79535-47bb-0310-9956-ffa450edef68