SOLR-6796: distrib.singlePass does not return correct set of fields for multi-fl-parameter requests

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1642873 13f79535-47bb-0310-9956-ffa450edef68
SOLR-4792: Remove WAR file from dist directory.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1642879 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-6087: allow custom DirectoryReader to SearcherManager

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1642887 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6732: back compat support needed in trunk and 5x to support upgrades from 4.10.1 to 5x

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1642917 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-6085: add back SI.attributes

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1642919 13f79535-47bb-0310-9956-ffa450edef68