[MENFORCER-205]
 - Fixed wrong link in documentation.


git-svn-id: https://svn.apache.org/repos/asf/maven/enforcer/trunk@1632787 13f79535-47bb-0310-9956-ffa450edef68
[MENFORCER-206]
 - Upgraded maven-invoker-plugin to version 1.9


git-svn-id: https://svn.apache.org/repos/asf/maven/enforcer/trunk@1632788 13f79535-47bb-0310-9956-ffa450edef68