paintAxis -- if number can be presented as an int print as int (e.g. …

…1.0 => 1)

js/util/paintAxis.js

@@ -52,7 +52,7 @@ function paintAxis(ctx, width, height, colorOrUndefined) {
 
         if (number === 0) {
             return "0"
-        } else if (Number.isInteger()) {
+        } else if (number % 1 === 0) {   // Number can be represented exactly as an integer
             return number
         } else if (Math.abs(number) >= 10) {
             return number.toFixed()