OpenDocument support - meta reworked

[Luciano Miguel Wolf <luciano wolf indt org br>]

Hi all,

I have just sent a new reworked patch[1], to handle meta information of
OpenDocument files. This new one is based on Jody's suggestions and
works based on libgsf structs. It imports the contents of meta.xml
(author, subject, etc). In a near future these informations will be
shown in a dialog window.

Best regards,
Luciano M. Wolf
INdT

[1] http://bugzilla.gnome.org/show_bug.cgi?id=316234