fix analysis near end floating point

modules/analyse/src/main/AdvantageChart.scala

@@ -26,7 +26,7 @@ private[analyse] final class AdvantageChart(advices: InfoAdvices) {
           case (_, Some(mate)) ⇒ Json.arr(move(info, advice), {
             val mateDelta = math.abs(mate.toFloat / 100)
             val whiteWins = info.color.fold(mate < 0, mate > 0)
-            scale(whiteWins.fold(max - mateDelta, mateDelta - max))
+            scale(whiteWins.fold(max - mateDelta, mateDelta - max)).toString
           })
           case _ ⇒ Json.arr(move(info, none), scale(0))
         }

todo

@@ -60,8 +60,7 @@ the forum search user:mephostophilis returns no result
 check team average elo http://en.lichess.org/inbox/benuegti#bottom
 if game ends during move -> bug
 LilaError['[analysis] fred65 already analyses ueogn4fr, won't process ueogn4fr']
-unload event http://en.lichess.org/forum/redirect/post/lnsqfhli
--> only rated games
+challenge friends
 
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