move turbine to top level

git-svn-id: https://svn.apache.org/repos/asf/turbine/fulcrum/branches/avendor@550313 13f79535-47bb-0310-9956-ffa450edef68
tree: 5b516fd74b2e14637fcb28b63aac48e6a23bbe3c
  1. commonsemail/
  2. groovy/
  3. pbe/
  4. resourcemanager/