gdm2 string changes

[Tommi Vainikainen <tvainika niksula cs hut fi>]

Hi,

I've committed many string changes to gdm2.
Here is a list of most important changes to help translators possibly
quickly skip many fuzzy strings.

	machine -> computer
	program -> application or command
	superuser -> root
	gdm, Gdm -> GDM

For discussion about these string changes, see
<URL: http://bugzilla.gnome.org/show_bug.cgi?id=310453 >

HTH,

-- 
Tommi Vainikainen