Zachary Tong 80288ad60c Add fingerprint token filter and fingerprint analyzer
Adds a `fingerprint` token filter which uses Lucene's FingerprintFilter,
and a `fingerprint` analyzer that combines the Fingerprint filter with
lowercasing, stop word removal and asciifolding.

Closes #13325
2016-04-20 16:10:56 -04:00
..
2015-12-24 14:31:26 +01:00