! fix for old browsers not supporting DD attachments
dropzone is hidden, when the scripts validates xhr 2 capability it will show it.

Signed-off-by: Spuds <spuds@spudsdesign.com>
! Oh ie8, we still love you :P
you can't access an array key named class with dot notation since ie8 thinks its a reserved name and poops out.

Signed-off-by: Spuds <spuds@spudsdesign.com>