xF1 Add-on [XFA] Download From list 1.0.2

Corrected bugs

• Undefined variable: selectFields error when not logged in
• Argument 2 passed must be of the type array, null given error

Corrected bugs:

• "Undefined index: attachment" for resources having no attachments

For those that already installed the 1.0.0 version, only files uploading is necessary, product remained unchanged (except version number).