The File Uploader CFT has undergone a major reconstruction which can be found in the v3 folder.
The files in the Root of the "file_uploader" folder have been updated to be proxy/include files that point to the files in the v3 folder.

The v1 files have been removed from the file_uploader folder structure. If an older version is needed you can use the files in the v2 folder.

When implementing the file uploader CFT we recommend using the latest version.
Please refer to the documentation inside version folder being used.