grafx - Extensible Java Graphics Package Code

Bumping up the number of layers to clear on level 2.

Fixing a major bug where good moves were being accidentally removed.

Reverting to an easier level.

Adjusting epsilon and qSearchBreadth.

Adding a 4x3 level w/ only 5-er blocks that fit.

After proofreading clearing up a couple of snafu's.

Introducing the zRot slide moves. It works. Will proofread shortly.

I don't think BlockPlacementStrategy will compile. I am saving changes in case
I want to go back to what I had.

Changing the rotateZ(Block) and rotateNegZ(Block) functions to be public.

Adding the rotateNegZ() methods.