grafx - Extensible Java Graphics Package Code

This is the first attempt at user drop block initiation delay, it compiles but
nothing has been run yet. I want to save this work even if it does not
function correctly because I don't want to lose these changes, which have been
meticulously crafted. Unfortunately the negative side effect of working this
way is that I sometimes commit broken code to the repository; I think for that
reason Git was invented, to make branching a lot more easy. I like Subversion
for small projects for its intuitive nature.

Extracting a System.currentTimeMillis() call in run_computeUserEvents(int)
because that value will be used again.

Setting m_userDropNotBefore back to zero in blockoutEventProcessed().

Extracting m_userDropNotBefore.

Things are becoming clearer because I am getting the help that I requested.
Defining RATIO_APPROX_ROT_ANIM_TO_USER_DROP_ANIM in SimpleGameLogic.

Changing a Javadoc comment in BlockGenerator.

Getting the ball rolling on an artificial delay in user drop block initiation
when rotation/inversion is happening which pushes block down in z direction.

Improving an internal comment in LocalBlockoutBoard, for more clarity.

Reverting m_pendingRot back to 'boolean' type. Adding huge comment explaining
why we set m_nextDropDue at a past point in time. Removing other long comment.
Trying to stay on topic. I need help solving this issue, of how to delay the
initiation of "drop block" when the rotation/inversion is pushing block down in
z direction.

Trying to set a bit on m_pendingRot if the block is being pushed down. Don't
really know where I'm going with this.