Add a site directory for site specific documents



git-svn-id: https://svn.apache.org/repos/asf/jakarta/velocity/site/trunk@369248 13f79535-47bb-0310-9956-ffa450edef68
tree: 2f1df4751ab191806c955b614dea72afa0fe8388
  1. LICENSE.txt
  2. project.properties
  3. project.xml
  4. xdocs/