Change recognizing dates with short years

Short years are now added to the current centure (2000) such that date
strings like 12/26/11 result in 12/26/2011 and not 12/26/1911.

modules/analysis/src/main/scala/docspell/analysis/date/DateFind.scala

@@ -34,7 +34,7 @@ object DateFind {
 
   private case class SimpleDate(year: Int, month: Int, day: Int) {
     def toLocalDate: LocalDate =
-      LocalDate.of(if (year < 100) 1900 + year else year, month, day)
+      LocalDate.of(if (year < 100) 2000 + year else year, month, day)
   }
 
   private object SimpleDate {