Those signals will not be emitted anymore, as the objects that
could emit them will be destroyed.
Fixes a warning on exit, as panel->accounts_treeview is already
destroyed when we get there.
https://bugzilla.gnome.org/show_bug.cgi?id=684702
It was being set up at class finalization time, which is too late.
Fixes crash when switching from panel to shell and back
(and then try to interact with the switches).
https://bugzilla.gnome.org/show_bug.cgi?id=682379
Programmatically deleting or inserting a row into a GtkTreeModel
implementation does not change the selection on the GtkTreeView even
if it is in browse mode (see GTK+ documentation). So, we need to
connect to the model's row-deleted and row-inserted signals and adjust
the selection ourselves.
Fixes: https://bugzilla.gnome.org/682175
Use a GtkButton instead of a GtkLabel to incite the user to configure
a new account, and insensitize the GtkBox on the left.
Fixes: https://bugzilla.gnome.org/672421
When bailing out early, the cleanup path is unreffing the provider
because the variable was used in the loop. We need to set it back
to NULL there.
https://bugzilla.gnome.org/show_bug.cgi?id=657819
