SOLR-4923: Commits to non leaders as part of a request that also contain updates can execute out of order.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1493779 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4923: add optimization CHANGES entry

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1493782 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4923: add missing credit

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1493829 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4923: do not test if not sending to leaders first

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1493861 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4931: SolrDeletionPolicy onInit and onCommit methods changed to override exact signatures (with generics) from IndexDeletionPolicy

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1493871 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4932 some extra parameters persisted to solr.xml

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1493982 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4876: Add more notes about IndexWriterConfig.clone and its implications.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1494146 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4926: remove some silliness

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1494160 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5064: Added PagedMutable.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1494233 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5064: Relax PagedGrowableWriter.ramBytesUsed test.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1494320 13f79535-47bb-0310-9956-ffa450edef68
make ulog final and clean up a bit

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1494330 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4934: Fix handling of <mergePolicy> init arg "useCompoundFile" needed after changes in LUCENE-5038

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1494348 13f79535-47bb-0310-9956-ffa450edef68