#149 Fixed event preventDefault

ng2-components/ng2-alfresco-upload/src/components/file-uploading-list.component.ts

@@ -63,7 +63,10 @@ export class FileUploadingListComponent {
     /**
      * Call the abort method for each file
      */
-    cancelAllFiles() {
+    cancelAllFiles($event) {
+        if($event) {
+            $event.preventDefault();
+        }
         this.filesUploadingList.forEach((uploadingFileModel: FileModel) => {
             uploadingFileModel.setAbort();
         });