LUCENE-3445: add SearcherManager to simplify handling of multiple search threads and reopening IndexSearcher

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_3x@1175420 13f79535-47bb-0310-9956-ffa450edef68
9 files changed
tree: 0ed0575bb930fcd9e0970aa0c00ae3f3f4d5b782
  1. dev-tools/
  2. lucene/
  3. solr/
  4. .hgignore
  5. build.xml
  6. README.txt