version bummped to 3.4.0 as new feature added

Author: vrajroham

package.json

@@ -6,7 +6,7 @@
     "Vaibhavraj Roham <@vrajroham>",
     "Alexander Wennerstrøm <@AlexanderYW>"
   ],
-  "version": "3.3.0",
+  "version": "3.4.0",
   "main": "./dist/vue2Dropzone.js",
   "repository": "[email protected]:rowanwins/vue-dropzone.git",
   "devDependencies": {