grafx - Extensible Java Graphics Package Code

Renaming 'reflection.png' to 'mirror.png' because of Sourceforge caching issues
which have persisted for more than twelve hours on their website.

Adding more strategies to LinearityOfZ.

Updating ELEVATION.txt.

Making some major corrections.

Updating LaunchTextDisplayArea slightly.

Updating reflection.png to have a caption.

Progress on LinearityOfZ.

Revising LinearityOfZ.

My analysis may be off because this seems to be a straight line.

Adding LinearityOfZ.