Make the binding return Windows-1252 if it has no idea (as this is what the parser will have defaulted to).
Fix form_new to not require a document charset to be present -- it may not be known at this point.
Fixup form document charsets post-parse, so that form submission works correctly.
svn path=/trunk/netsurf/; revision=6575
Please can we dispense with the libxml binding? It's causing much #ifdef mess.
Fix encoding of <input type=image> names -- previously were output as raw utf-8, rather than in the submission charset.
Actually bother to destroy forms in a document, and the controls associated with them. We still leak non form-associated controls, but that's too much effort to fix right now.
svn path=/trunk/netsurf/; revision=6573
