Vcard support in xgnokii.

Xgnokii is capable to save contatcs in vcard format (Thanks to Pavel Machek
<pavel@ucw.cz>). If you want to save contacts in vcard format you must in
export dialog write file name with .vcard or .gcrd extension.

				Jan Derfinak <ja@mail.upjs.sk>

If you want to know more about vcard format, read rfc2426. You can use
gnomecard utility to process .gcrd files.

				Pavel Machek <pavel@ucw.cz>
