overlay No is visible in alias info window

CHANGELOG

 minerva (14.0.0~beta.2) unstable; urgency=low
+  * Small improvement: info window contains information about overlay No (#919)
   * Bug fix: exported SBML passes online validation (#831)
   * Bug fix: allow user to remove own comments (#931)
   * Bug fix: validation of project name length is provided (#950)

frontend-js/src/main/js/map/window/AliasInfoWindow.js

@@ -126,6 +126,7 @@ AliasInfoWindow.prototype.createChartDiv = function (params) {
       if (name.length > 20) {
         name = name.substr(0, 20) + "...";
       }
+      name = "[" + overlays[i].getOrder() + "] " + name;
       var nameDiv = document.createElement("div");
       nameDiv.className = "minerva-chart-name";
       nameDiv.innerHTML = name + " ";