TODO: updated
src/boards/draw.c: (get_tool_cursor), (item_event_move): changed drawing tools order.
                                               fixed raise/lower button.
src/boards/menu.c: (menu_create_item): put in red sound icon if sound is not working
src/gcompris/oggplayer.c: (decode_ogg_file): disable the sounds in gcompris if cannot open it
src/gcompris/properties.h: added a boolean to check if the sounds is working
src/gcompris/soundutil.c: (scheduler_bgnd): check in the background loop if sounds is enabled
                          now if you disable music, next song will quit the
                          background loop
src/gcompris/gcompris.c: (gcompris_set_cursor): Patch from PUYDT Julien (from debian)
                        solves the cursor random color.
src/gcompris/properties.c: (gcompris_properties_new): now esd no more used by default
                    as the sound output but the default libao output. this
                    maybe changed using gcompris -A or editing /etc/libao.conf
                    added a boolean to check if the sounds is working