Simon Willnauer 8e17d636ef Upgrade to Lucene 4.6
This commit upgrades to Lucene 4.6 and contains the following improvements:

 * Remove XIndexWriter in favor of the fixed IndexWriter
 * Removes patched XLuceneConstantScoreQuery
 * Now uses Lucene passage formatters contributed from Elasticsearch in PostingsHighlighter
 * Upgrades to Lucene46 Codec from Lucene45 Codec
 * Fixes problem in CommonTermsQueryParser where close was never called.

Closes #4241
2013-11-24 21:08:38 +01:00
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2013-11-24 21:08:38 +01:00