WireUpload bug found(?)

[joe_g]

Hi there,

I found something that kept me busy for a while. Not sure if it's a bug exactly, maybe I'm missing some naming conventions.

But if the form field has a dash "-" in it, wireupload fails silently (it doesn't get populated, I guess it doesn't recognise the field)

I change my form field from

form-files

to 

formfiles

and then it worked

[Soma]

Fieldnames don't allow "-" dash. Cause PHP variable also doesn't.

[Martijn Geerts]

I also think allowed characters for MySQL table name is a limiting factor here.
I do think ProcessWire shouldn't allow you to use dashes. I posted this on github so Ryan take notice.