https://github.com/sindicetech/sirendb/blob/508a15e56fccb98d8acee69eeb7503cb03b3a942/siren-solr/src/main/java/com/sindicetech/siren/solr/analysis/DateNumericAnalyzer.java `DateField` is deprecated, `TrieDateField` should be used. https://groups.google.com/a/sindicetech.com/forum/embed/?place=forum%2Fsiren-user#!topic/siren-user/4-xZlxuPPno
