Public scoreboard stopwatch feature

#10

config/locales/en.yml

@@ -65,6 +65,7 @@ en:
         offline_form_warning: Only for single-puzzle contests
         public: Enable the public scoreboard
         ranking_mode: Ranking mode (public scoreboard & CSV exports)
+        show_stopwatch: Display the stopwatch
         team: Team contest
         team_description: For UI display purposes mainly
         allow_registration: Allow registration
@@ -206,12 +207,13 @@ en:
       onsite: Onsite contests
       public: Public scoreboard
       settings: Settings
+      stopwatch: Stopwatch
     new:
       notice: Contest added
       title: New jigsaw puzzle contest
     scoreboard:
       all_categories: All categories
-      auto_refresh: Auto refresh
+      auto_refresh: Auto refresh (30s)
       hide_offline: Hide offline participants
       refresh: Activate auto-refresh (every 5s)
       title: "%{name}"
@@ -225,6 +227,8 @@ en:
       offline_form_disabled: The offline form is disabled
       public_scoreboard_disabled: The public scoreboard is disabled
       url_copied: URL copied to the clipboard
+    stopwatch:
+      info: This stopwatch is used for display in the public scoreboard, when allowed in the settings
   contestants:
     convert_csv:
       title: Import participants
@@ -287,6 +291,10 @@ en:
       sign_in: Sign in
       save: Save
       start: Click here to start your participation
+      stopwatch_continue: Continue
+      stopwatch_pause: Pause
+      stopwatch_reset: Reset
+      stopwatch_start: Start
       update: Save modifications
     field: Field
     none: No field selected