[Usability] New launcher edition dialog

[Vincent Untz <vuntz gnome org>]

Hi,

For... a really long time, we have a bug about simplifying the new
launcher dialog :
   http://bugzilla.gnome.org/show_bug.cgi?id=95331

I coded a new dialog to be put in gnome-desktop (or maybe
gnome-menus...). You can see screenshots in the bug. Please ignore the
english/french mix in the strings ;-)

Quick links:

Creating a new launcher:
   http://bugzilla.gnome.org/attachment.cgi?id=62151

Editing an application launcher:
   http://bugzilla.gnome.org/attachment.cgi?id=62148

Editing an application launcher to be launched in a terminal:
   http://bugzilla.gnome.org/attachment.cgi?id=62149
(there's still a lot of people out there adding launchers for terminal
application, so I don't believe we should remove this)

Editing a link launcher:
   http://bugzilla.gnome.org/attachment.cgi?id=62150

I'd like some feedback on this. Is it totally wrong? (I hope not ;-)) Is
there some things to improve? Do you agree we should go ahead and use
this in 2.15?

Thanks,

Vincent

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