csv has new column time zone so duration moves one up

ttanalysis.sc

@@ -73,7 +73,7 @@ class Credit(path: Path) {
 
       start    = LocalDateTime.parse(entry(4), formatter)
       end      = LocalDateTime.parse(entry(5), formatter)
-      duration = entry(7).toDouble
+      duration = entry(8).toDouble
     } yield TTEntry(start, end, duration)
 
     reader.close()