website changes for 3.4.0

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_3x@1170719 13f79535-47bb-0310-9956-ffa450edef68
8 files changed
tree: 05a75f1bf5bfd266fc47bc52e03b1ed7e289e8de
  1. dev-tools/
  2. lucene/
  3. solr/
  4. .hgignore
  5. build.xml
  6. README.txt