Don't use toLocaleString for numbers

package.json

 {
   "name": "ed3-format-default",
-  "version": "0.2.4",
+  "version": "0.2.5",
   "description": "Default format for ed3 library",
   "main": "index.js",
   "scripts": {

src/index.js

@@ -58,5 +58,5 @@ export function basicFormat(x){
         return x.toExponential();
     }
 
-    return x.toLocaleString(); // for proper decimal separator
+    return x.toString();
 };