grafx - Extensible Java Graphics Package Code

Fixing heightMetric(). The rest of the metrics need the same sort of analysis,
after which a suitable linear combination of the metrics should be decided
upon.

Tidy up the code a little bit.

Fixing nook and cranny metric, using square. May even try cube of height
delta if this is not good enough.

Going over the code with a fine-toothed comb. Finished heightMetric() and
coveredHoleMetric(), next up is nookAndCrannyMetric(), which is the one that
really needs a lot of attention.

Tweaking EvalFunction some more.

Changing the axis of rotation direction for one of the axis, so that I could
follow instructions more readily.

Printing out those best metrics.

Printing out some best metrics.

This is pretty amazing. I was able to clear the hard level without any
problems, by following the instructions from the eval() function, which only
saw the current block (not next block). I think it performs better than I do.

Doing better null handling of transform in putUniqueOrientedBlock().