update of svn:ignore

git-svn-id: https://svn.apache.org/repos/asf/archiva/site/trunk@1585876 13f79535-47bb-0310-9956-ffa450edef68
tree: 70e01721da0b34735ea48d3699162f13e1e3b07f
  1. src/
  2. build.xml
  3. pom.xml
  4. README