allow_all_file_extensions 7.x-1.1

This was way harder than it ought to have been. Not only is the new validation annoying to begin with, it was put in a place that makes it very difficult to override. The only way I can do it is be recursively crawling though all the elements in a form, checking if they're file fields, and setting a value in them. This is because the code in core adds the validation function at a really braindead time.

I maintain that this module should never have been necessary in the first place.

Regardless, it works correctly now.