Upgrade Lucene to 5.5.0

This is not the latest version on the 5.x series, but is the version
used in the latest release of Elasticsearch.

Change-Id: Iddc6852cc1e2e338e4d026b0ba3438e8f26fc812

gerrit-lucene/src/main/java/com/google/gerrit/lucene/QueryBuilder.java

@@ -50,7 +50,7 @@ import java.util.List;
 public class QueryBuilder<V> {
   static Term intTerm(String name, int value) {
     BytesRefBuilder builder = new BytesRefBuilder();
-    NumericUtils.intToPrefixCodedBytes(value, 0, builder);
+    NumericUtils.intToPrefixCoded(value, 0, builder);
     return new Term(name, builder.get());
   }