updated maven version prerequisite from 2.0.6 to 2.2.1

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia-tools/trunk@1730179 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: b4e867534b87dfd24551d1e2c8dd5eb69809cfbb
  1. src/
  2. pom.xml