gnome-mplayer-1.0.8 gtk+-3.8.2 : Build warnings. deprecated gtk+ functions, schema path

[GoogleCodeExporter]

What steps will reproduce the problem?
1. gtk+ version 3.8.2
2. Build gnome-mplayer with -Wdeprecated-declarations

Some highlights: 

1. In function 'get_properties': nautilus_property_page.c:282:9:
warning: 'gtk_table_attach_defaults' is deprecated (declared at 
/usr/include/gtk-3.0/gtk/deprecated/gtktable.h:120): Use 'GtkGrid' instead 
[-Wdeprecated-declarations]

2. In function 'gnome_mplayer_properties_get_pages': 
nautilus_property_page.c:490:9:
warning: 'gtk_table_new' is deprecated (declared at 
/usr/include/gtk-3.0/gtk/deprecated/gtktable.h:101): Use 'GtkGrid' instead 
[-Wdeprecated-declarations]

3. In function 'play_iter': main.c:441:9:
warning: 'g_thread_create' is deprecated (declared at 
/usr/include/glib-2.0/glib/deprecated/gthread.h:100): Use 'g_thread_new' 
instead [-Wdeprecated-declarations]

4. In function 'make_panel_and_mouse_invisible': gui.c:2995:13:
warning: 'gdk_cursor_unref' is deprecated (declared at 
/usr/include/gtk-3.0/gdk/gdkcursor.h:233): Use 'g_object_unref' instead 
[-Wdeprecated-declarations]

5. warning: Schema 'apps.gnome-mplayer.preferences' has path 
'/apps/gnome-mplayer/preferences/'.  Paths starting with '/apps/', '/desktop/' 
or '/system/' are deprecated.

Original issue reported on code.google.com by brun...@gmail.com on 16 Jun 2013 at 9:31

[GoogleCodeExporter]

Known problem, will fix as I get around to it. If you want to provide patches 
to start fixing these warnings I will review them.

Original comment by kdeko...@gmail.com on 16 Jun 2013 at 1:16