LUCENE-3846: make branch for fuzzy analyzing suggester

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene3846@1397170 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-3846: commit current patch

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LUCENE-3846: merge trunk

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LUCENE-4006: Add system requirements page (markdown)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1398564 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4006: Exchange files

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1398570 13f79535-47bb-0310-9956-ffa450edef68
don't call merged segment warmer on 100% deleted segment; drop the merged reader from the pool if it's 100% deleted

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1398850 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4485: CheckIndex's terms, terms/docs pairs counts don't include deleted docs

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399028 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4464 polygon almost touch test

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LUCENE-4006: expect SYSTEM_REQUIREMENTS.txt in unpacked Lucene / Solr

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399188 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4486: Add support for ConstantScoreQuery in Highlighter.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399205 13f79535-47bb-0310-9956-ffa450edef68
add a way to keep a test's temporary files even if it passes (e.g. hprof profiler output or something)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399347 13f79535-47bb-0310-9956-ffa450edef68
SOLR-3961: Fixed error using LimitTokenCountFilterFactory

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399474 13f79535-47bb-0310-9956-ffa450edef68
reduce RAM cost per unique field while writing postings

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399607 13f79535-47bb-0310-9956-ffa450edef68
only check SYSTEM_REQUIREMENTS.txt for lucene

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399620 13f79535-47bb-0310-9956-ffa450edef68
catch up with trunk

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LUCENE-4472: provide propper context information to MergePolicy which events triggered a findMerges

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399712 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-3846: cleanup tests, add javadocs, reenable assertions, prepare reintegration

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LUCENE-4006: re-enable checking SYSTEM_REQUIREMENTS.txt for Solr

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399743 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4182: consider concurrent in-flight add / update process in memory assert

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1399757 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-4488: ignore this heapdump-producing test case for now

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