GtkFileChooser extensions

[Federico Mena Quintero <federico ximian com>]

Hi,

I've been working on a specification for an extension mechanism for
GtkFileChooser.  Global searching, lock-down, and metadata systems would
benefit from being able to extend what GtkFileChooser can do.

The draft spec is here:

http://primates.ximian.com/~federico/docs/file-chooser-extension-spec/index.html

It's far from finished, and I'm sure some things can be made more
elegant, so your comments would be greatly appreciated :)

  Federico