Set shininess above 0 to tackle issue #19

Apparently #19 is a bug after all; the defaults are already set in a way favorable to XNALara, but the lack of shininess meant that stuff still didn't render properly.
Ensure that the C++ error is actually seen.

Remember: It's the recovery suggestion that gets shown, not anything else.
Actually reverse the order instead of just claiming to.

Look carefully at the old code. Oh, sure, it says "reverse order", but it doesn't actually do that, does it? Now that's fixed and all supported OBJ files load correctly. That should solve issue #19 (as said before: Actually a bug).