fix memory leak

extensions/spine/Atlas.cpp

@@ -303,7 +303,7 @@ Atlas* Atlas_readAtlasFile (const char* path) {
 	data = _Util_readFile(path, &length);
 	if (data) atlas = Atlas_readAtlas(data, length, dir);
 
-	FREE(data);
+	delete [] data;
 	FREE(dir);
 	return atlas;
 }

extensions/spine/SkeletonJson.cpp

@@ -240,7 +240,7 @@ SkeletonData* SkeletonJson_readSkeletonDataFile (SkeletonJson* self, const char*
 		return 0;
 	}
 	skeletonData = SkeletonJson_readSkeletonData(self, json);
-	FREE(json);
+    delete [] json;
 	return skeletonData;
 }