title: Dropzone max file size exceeded event
body: <p>I am using dropzone in my form for image upload. I would like to show an alert message and remove the file added when the user chooses a file above the configured limit.
  Here is my configuration:</p>
  
  <pre><code>Dropzone.options.myDropzone = { 
        paramName: 'file',
        url: "http://someurl",
        clickable: true,
        enqueueForUpload: true,
        autoProcessQueue: false,
        uploadMultiple: true,
        parallelUploads: 5,
        maxFiles: 1,
        maxFilesize: .06,
        maxThumbnailFilesize: .06,
        acceptedMimeTypes: 'image/*',
        addRemoveLinks: true,
        dictDefaultMessage: 'Drag your images here',
        init: function() {
             console.log('init');
             this.on("maxfilesexceeded", function(file){
                  alert("No more files please!");
                  this.removeFile(file);
              });
  
      }
  };
  </code></pre>
  
  <p>I tried to register a listener for 'maxfilesizeexceeded' event, but it didnt fire.
  I would like to take similar action as for 'maxfilesexceeded'.
  Is this possible?</p>