LUCENE-5703: BinaryDocValues producers don't allocate or copy bytes on each access anymore

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1600741 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5721: Monotonic compression doesn't use zig-zag encoding anymore.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1600747 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6088: Add query re-ranking with the ReRankingQParserPlugin

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1600760 13f79535-47bb-0310-9956-ffa450edef68
SOLR-6088: Add query re-ranking with the ReRankingQParserPlugin

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1600767 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5738: Ensure NativeFSLock prevents opening the file channel twice if lock is held

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1600831 13f79535-47bb-0310-9956-ffa450edef68
Failing test.
Fix hack code and tests.