message: refactorings in upload component
diff: @@ -9,29 +9,15 @@ import {SnackBarService} from '../../services/snack-bar.service';
  })
  export class UploadFormComponent implements OnInit, OnChanges {
  - @Input()
  - uploadPath: string;
  -
  - @Input()
  - uploadMethod = 'POST';
  -
  - @Input()
  - allowedMimeTypes: string[];
  -
  - @Input()
  - additionalData: any;
  -
  - @Input()
  - maxFileNumber: number;
  -
  - @Output()
  - onFileSelectedChange = new EventEmitter();
  -
  - @Output()
  - onFileUploaded = new EventEmitter();
  -
  - @Output()
  - onAllUploaded = new EventEmitter();
  + @Input() uploadPath: string;
  + @Input() uploadMethod = 'POST';
  + @Input() allowedMimeTypes: string[];
  + @Input() additionalData: any;
  + @Input() maxFileNumber: number;
  +
  + @Output() onFileSelectedChange = new EventEmitter();
  + @Output() onFileUploaded = new EventEmitter();
  + @Output() onAllUploaded = new EventEmitter();
  hasDropZoneOver = false;
  fileUploader: FileUploader;
  