Added a method to KRAudioManager to allow the CircaAppDelegate to turn off the audio when the app is deactivated

--HG--
branch : nfb

KREngine/kraken/KRAudioManager.cpp

@@ -2057,3 +2057,8 @@ void KRAudioManager::renderLimiter()
     unsigned long numframes = KRENGINE_AUDIO_BLOCK_LENGTH;
     audioLimit_Stereo(output, numframes);
 }
+
+void KRAudioManager::goToSleep()
+{
+    cleanupAudio();
+}

KREngine/kraken/KRAudioManager.h

@@ -144,6 +144,7 @@ public:
     KRAudioBuffer *getBuffer(KRAudioSample &audio_sample, int buffer_index);
     
     static void mute(bool onNotOff);
+    void goToSleep();
 
     void startFrame(float deltaTime);
     
@@ -191,7 +192,6 @@ private:
     void cleanupAudio();
     void cleanupOpenAL();
     void cleanupSiren();
-    
 
     
     audio_engine_t m_audio_engine;