521314: update Lucene to 6.1.0.v20170814-1820

Change-Id: I7c9114ae28cad0d75a5b9573144cd35006f0e1be
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=521314
Signed-off-by: Jaxsun McCarthy Huggan <jaxsun.mccarthy@tasktop.com>
2 files changed