Fixed the issues with umd build, and updated version to 0.2.2

Author: mohammed-io

dist/frappe-gantt.iife.js

@@ -1,6 +1,6 @@
 {
   "name": "frappe-gantt-react",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "license": "MIT",
   "main": "./index.js",
   "types": "./typings/main.d.ts",

dist/frappe-gantt.umd.js

@@ -17,12 +17,21 @@ export default {
     },
     {
       file: "./dist/frappe-gantt.umd.js",
-      name: "Gantt",
+      name: "FrappeGanttReact",
       format: "umd",
       globals: {
         react: "React",
         "frappe-gantt": "Gantt"
       }
+    },
+    {
+      file: "./dist/frappe-gantt.iife.js",
+      name: "FrappeGanttReact",
+      format: "iife",
+      globals: {
+        react: "React",
+        "frappe-gantt": "Gantt"
+      }
     }
   ],
   external: ["react", "react-dom", "frappe-gantt"],