* fine-tune series differentiation

source/net/sourceforge/filebot/similarity/EpisodeMetrics.java

@@ -191,9 +191,9 @@ public enum EpisodeMetrics implements SimilarityMetric {
 		
 		@Override
 		public float getSimilarity(Object o1, Object o2) {
-			// normalize absolute similarity to similarity rank (5 ranks in total),
+			// normalize absolute similarity to similarity rank (4 ranks in total),
 			// so we are less likely to fall for false positives in this pass, and move on to the next one
-			return (float) (floor(super.getSimilarity(o1, o2) * 5) / 5);
+			return (float) (floor(super.getSimilarity(o1, o2) * 4) / 4);
 		}