afegit so al LOGO

Makefile

@@ -36,6 +36,8 @@ APP_SOURCES := \
     source/main.cpp \
     source/core/system/director.cpp \
     source/core/system/global_events.cpp \
+    source/core/audio/audio.cpp \
+    source/core/audio/audio_cache.cpp \
     source/core/rendering/sdl_manager.cpp \
     source/core/rendering/line_renderer.cpp \
     source/core/rendering/color_oscillator.cpp \