grafx - Extensible Java Graphics Package Code

Removing some blank lines in scripts.

Adding script build-3d-javadoc-ball.sh.

Adding script build-2d-javadoc-ball.sh.

Adding missing copyright notices to Javadoc generation scripts.

Extracting MAJOR_TO_MINOR_RADIUS_RATIO.

Getting better control of zMax/zMin.

Adding computeInitialRotation().

Extracting the tesselation counts as constants.

Adding m_clearRadPx.

Adding PgUp+PgDn keys.