Fix the scriptengine breakage causing non-working game examples

,

The comment was changed in those two lines:
- d->appendScript( asset, className );
- //d->buildScript();
...
+ //d->appendScript( asset, className );
+ d->buildScript();

If it is intentional, it might require further study. That was the culsprit
of the breakage. It was a bit hard and sleep deprivated time to follow git
bisect so long, but the games are at least now working nicely. :)