Multiple files - one error prevents any upload

[capeck]

I am using DatingVIP fork which supports multiple files, If one of the files being uploaded isn't valid, nothing gets uploaded. That can include a validation rule as well as an empty element of the files array (i.e. only 2 of 3 files were chosen to be uploaded).

[williamespindola]

@capeck I think this validation must be included at DatingVIP project not here.