Display time per puzzle for marathon scoreboards

config/locales/en.yml

@@ -47,6 +47,7 @@ en:
         contestant: Participant
         display_time: Time
         display_time_from_start: Time since start
+        display_time_from_start_description: Format mm:ss or h:mm:ss
         display_relative_time: Time for this puzzle
         puzzle: Puzzle
         missing_pieces: Missing pieces
@@ -284,7 +285,7 @@ en:
     rank: Rank
   lib:
     ranking:
-      actual: First by time if completed, then by number of pieces assembled
+      actual: First by number of pieces assembled, then by time
       theorical: By time only (projected time calculated with the ppm count)
   messages:
     index: