SOLR-4260: ConcurrentUpdateSolrServer#blockUntilFinished can return before all previously added updates have finished. This could cause distributed updates meant for replicas to be lost.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1558982 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4260: Add name to CHANGES

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1558983 13f79535-47bb-0310-9956-ffa450edef68
remove this folder - should not have been committed

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1558984 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4260: Guard against NPE.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_6@1558988 13f79535-47bb-0310-9956-ffa450edef68