Changed OpenAL includes from AL/al.h to al.h because accoring to the CMake FindOpenAL package it's more portable.

Core/Contents/Include/PolySound.h

@@ -28,8 +28,8 @@
 #include "PolyVector3.h"
 #include <string>
 #include <vector>
-#include "AL/al.h"
-#include "AL/alc.h"
+#include "al.h"
+#include "alc.h"
 #include "OSBasics.h"
 
 using std::string;

Core/Contents/Include/PolySoundManager.h

@@ -25,8 +25,8 @@
 #include "PolyLogger.h"
 #include "PolyGlobals.h"
 #include <stdio.h>
-#include "AL/al.h"
-#include "AL/alc.h"
+#include "al.h"
+#include "alc.h"
 #include "PolyVector3.h"
 
 namespace Polycode {