Version update

ekelokorpi · ekelokorpi · commit 056e745d979e · 2018-07-05T15:07:19.000+03:00
diff --git a/src/engine/core.js b/src/engine/core.js
@@ -99,7 +99,7 @@ var game = {
         Engine version.
         @property {String} version
     **/
-    version: '2.8.1dev',
+    version: '2.8.1',
     /**
         @property {Boolean} _booted
         @private
