[maven-release-plugin]  copy for tag maven-skins-8

git-svn-id: https://svn.apache.org/repos/asf/maven/skins/tags/maven-skins-8@1548976 13f79535-47bb-0310-9956-ffa450edef68
tree: 3f2d01b22d64e751f510ac85c1917f5109fe3c45
  1. src/
  2. pom.xml
  3. site-pom.xml