Merged revision(s) 1468571 from lucene/dev/trunk:
SOLR-4358: HttpSolrServer sends the stream name and exposes useMultiPartPost
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git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1468572 13f79535-47bb-0310-9956-ffa450edef68