Nautilus converted to GSettings

[Alexander Larsson <alexl redhat com>]

I managed to steal a day to work on nautilus, spending it on converting
it to GSettings. I've changed all nautilus preferences to use GSettings
and removed eel-enumaration, eel-preferences, eel-gconf-externsions and
the gconf schemas.

I tried to test things, but this is a large, boring change and i might
very well have missed some detail. Please try it out.

There is some things left to do, that I likely won't have time to do:

* When the new gsettings-desktop-schemas module lands, convert our gconf
use for lockdown and desktop backgrounds to this and remove the gconf
dependency.

* Write a mapping for the old gconf settings to the new settings so they
get migrated, as described in
http://library.gnome.org/devel/gio/2.25/ch27s07.html

* Some of the changes in the preference dialog to use GSettings may have
lost the ability to become insensitive if the setting is not writable,
as the g_settings_bind automatic stuff don't work for all our cases. We
should test this and add the necessary support code to make it work
again.

I'm off for vacation again the next three weeks, so I'm unlikely to read
any replies to this after friday afternoon.

-- 
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 Alexander Larsson                                            Red Hat, Inc 
       alexl redhat com            alexander larsson gmail com 
He's a suave alcoholic gangster who hangs with the wrong crowd. She's a 
cold-hearted goth detective on the trail of a serial killer. They fight crime!