grafx - Extensible Java Graphics Package Code

Carrying over the bounded() optimizations to all line-drawing code that uses
constant color.

Wrapping the code around an outer loop so that a block isn't repeated.

Relocating a comment.

Replacing a TODO comment with the facts.

Changing curly brace locations, trying to consolidate code.

Removing the bounded() call in middle section.

Continuing with the experimental performance improvements to line drawing.

Another iteration of experimental performance improvements to line drawing.

In line-drawing optimization experiment, unrolling first iteration, and paving
way to 'break' out of center loop.

Adding a line with 2 pixels at start major and 2 at end major, and pasting the
expected program output. We're ready to edit the line-drawing code.