GTK+ api change

["Matthias Clasen" <matthias clasen gmail com>]

Murray complained that the new icon-related api in GtkEntry is not
very consistent,
and he was right. So I took the chance to fix this before its too
late. The change
looks worse than it it, I think, since it only affects property names
and getters.
All examples involving entry icons in GTK+ kept working, eg.


2009-01-18  Matthias Clasen  <mclasen redhat com>

        Bug 567887 – gtk_entry_get_storage_type() should be
        gtk_entry_get_icon_storage_type()

        * gtk/gtk.symbols:
        * gtk/gtkentry.[hc]: Use the last chance to get the api right,
        and rename things for consistency, requested by Murray Cumming.
        In detail,
        gtk_entry_get_stock -> gtk_entry_get_icon_stock
        gtk_entry_get_pixbuf -> gtk_entry_get_icon_pixbuf
        gtk_entry_get_gicon -> gtk_entry_get_icon_gicon
        gtk_entry_get_storage_type -> gtk_entry_get_icon_storage_type
        ::prelight -> ::icon-prelight
        ::pixbuf-primary -> ::primary-icon-pixbuf
        ::stock-primary -> ::primary-icon-stock
        ::icon-name-primary -> ::primary-icon-name
        ::gicon-primary-> ::primary-icon-gicon
        ::storage-type-primary -> ::primary-icon-storage-type
        ::activatable->primary -> ::primary-icon-activatable
        ::sensitive-primary -> ::primary-icon-sensitive
        (and similar for secondary properties)