Phase 40: clock tempo at 1 min/s, x5/x10 heavy stride.

docs/protocol.md

@@ -39,7 +39,7 @@ people; it does not change on a living school.
 {
   "maxSchools": 6,
   "defaultStartDate": "2012-03-31T06:00:00Z",
-  "gameMinutesPerRealSecond": 5,
+  "gameMinutesPerRealSecond": 1,
   "schoolWeekDays": 5,
   "schools": [
     { "id": 1, "name": "Гимназия №14", "gameTime": "2012-03-31T07:35:00Z", "running": false, "speedIndex": 1, "modIds": ["core"], "seed": 1847291 }
@@ -753,9 +753,9 @@ Running and speed are **separate messages on purpose**. A single "set clock" mes
 button to resend the other field from the client's own copy of the state, which is always at least
 one tick stale — pressing play and then a speed button would pause the school again.
 
-Speed indexes are `0 = ×½`, `1 = ×1`, `2 = ×2`, `3 = ×3`, `4 = ×4`; out-of-range values are
-ignored rather than fatal. The base rate is `gameMinutesPerRealSecond` (5), so ×1 is five game
-minutes per real second.
+Speed indexes are `0 = ×½`, `1 = ×1`, `2 = ×2`, `3 = ×5`, `4 = ×10`; out-of-range values are
+ignored rather than fatal. The base rate is `gameMinutesPerRealSecond` (1), so ×1 is one game
+minute per real second.
 
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