[PATCH] Label fallback in dataforms
Some dataforms comes with no label and so gajim show fields without any labels, this patch make labels fallbacks to <field> 'var' attribute or <value> data in case of an <option> 's label.
For example: the dataform provided by irc.jabberfr.fr / register come with no label: Actions -> Discover Services -> Address: jabber.fr -> Transport irc.jabberfr.fr -> Register.