Resize image should use int for width and height.

Author: dianaprajescu

examples/server.js

@@ -29,7 +29,7 @@ app.post('/upload_image', function (req, res) {
 app.post('/upload_image_resize', function (req, res) {
 
   var options = {
-    resize: ['300', '300']
+    resize: [300, 300]
   }
   FroalaEditor.Image.upload(req, '/uploads/', options, function(err, data) {
 
@@ -175,4 +175,4 @@ if (!fs.existsSync(filesDir)){
 
 app.listen(3000, function () {
   console.log('Example app listening on port 3000!');
-});
+});