[DOXIASITETOOLS-178] Upgrade to Commons Lang 3

Philippe Marschall <philippe.marschall@gmail.com>

This closes #4

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia-sitetools/trunk@1800812 13f79535-47bb-0310-9956-ffa450edef68
2 files changed