Better Mac fix for early graphics API setup.

Author: slembcke

cocos2d/CCConfiguration.m

@@ -91,7 +91,6 @@ + (CCConfiguration *)sharedConfiguration
 {
 	if (!_sharedConfiguration){
 		_sharedConfiguration = [[self alloc] init];
-		[_sharedConfiguration configure];
 	}
 
 	return _sharedConfiguration;

cocos2d/Platforms/Mac/CCGLView.m

@@ -166,8 +166,8 @@ - (void) prepareOpenGL
 	GLint swapInt = 1;
 	[[self openGLContext] setValues:&swapInt forParameter:NSOpenGLCPSwapInterval];	
 
-	// Force the configuration to init as early as possible.
-	[CCConfiguration sharedConfiguration];
+	// Force the graphics API to be set up as early as possible.
+	[[CCConfiguration sharedConfiguration] graphicsAPI];
 
 //	GLint order = -1;
 //	[[self openGLContext] setValues:&order forParameter:NSOpenGLCPSurfaceOrder];