Upgrade Lucene to 5.5.2
Upgrade Lucene to 5.5.2

Version 5.5.2 is the latest release of 5.x before 6.x and will
be used in Elasticsearch 2.4.0 [1].

[1] https://github.com/elastic/elasticsearch/pull/19496

Change-Id: Ice4ca86fe141bc42abcdc25867761dc6f4272851

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