Fix Regression from 5230cf8

Forgot to comment out the matching }

build.gradle

@@ -30,7 +30,7 @@ if (System.getenv('TRAVIS') != null) {
         ext.jmeEngineVersion = "3.1.0-" + System.env.TRAVIS_TAG + "-SNAPSHOT"
     } else {*/
         ext.jmeEngineVersion = "3.1.0-beta3" // Use Beta 2 instead of 3.1.0-master-SNAPSHOT
-    }
+    //}
 } else {
     ext.jmeEngineVersion = "3.1.0-beta3" // In case you build of the HEAD of 3.1, you need to change that to 3.1.0-SNAPSHOT again
 }