upgrade moment.js

.gitmodules

@@ -22,3 +22,6 @@
 [submodule "ui/chessli"]
 	path = ui/chessli
 	url = https://github.com/ornicar/chess.js
+[submodule "public/vendor/moment"]
+	path = public/vendor/moment
+	url = https://github.com/moment/moment

app/templating/AssetHelper.scala

@@ -4,7 +4,7 @@ package templating
 import controllers.routes
 import play.twirl.api.Html
 
-trait AssetHelper {
+trait AssetHelper { self: I18nHelper =>
 
   val assetVersion = lila.api.Env.current.Net.AssetVersion
 
@@ -51,9 +51,18 @@ trait AssetHelper {
     local = staticUrl("vendor/highcharts4/highstock.js"))
 
   val momentjsTag = cdnOrLocal(
-    cdn = "http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.3/moment.min.js",
+    cdn = "http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.4/moment.min.js",
     test = "window.moment",
-    local = staticUrl("vendor/momentjs.min.js"))
+    local = staticUrl("vendor/moment/min/moment.min.js"))
+
+  def momentLangTag(implicit ctx: lila.api.Context) = (lang(ctx).language match {
+    case "en" => none
+    case "pt" => "pt-br".some
+    case "zh" => "zh-cn".some
+    case l    => l.some
+  }).fold(Html("")) { l =>
+    jsAt(s"vendor/moment/locale/$l.js", static = true)
+  }
 
   val powertipTag = cdnOrLocal(
     cdn = "http://cdnjs.cloudflare.com/ajax/libs/jquery-powertip/1.2.0/jquery.powertip.min.js",

app/templating/DateHelper.scala

@@ -63,15 +63,4 @@ trait DateHelper { self: I18nHelper =>
   def momentFromNow(date: DateTime) = Html {
     s"""<time class="moment-from-now" datetime="${isoFormatter print date}"></time>"""
   }
-
-  def momentLangTag(implicit ctx: Context) = Html {
-    (lang(ctx).language match {
-      case "en" => none
-      case "pt" => "pt-br".some
-      case "zh" => "zh-cn".some
-      case l    => l.some
-    }) ?? { l =>
-      s"""<script src="http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.6.0/lang/$l.js"></script>"""
-    }
-  }
 }

public/vendor/moment

@@ -0,0 +1 @@
+Subproject commit 2f9b330eb35a38184fd7239749c7f0feef6c5146