Add missing atlasscript. Set multithread to false for Symbian on start.

UI/NativeApp.cpp

@@ -357,6 +357,8 @@ void NativeInit(int argc, const char *argv[],
 	}
 #ifdef __SYMBIAN32__
 	g_Config.bHardwareTransform = true;
+	g_Config.bSeparateCPUThread = false;
+	g_Config.bSeparateIOThread = false;
 #endif
 	// Special hack for G3D as it's very spammy. Need to make a flag for this.
 	if (!gfxLog)