Eliminated most of the say-nothing-new comments.

Eliminated most of the say-nothing-new comments.

Fit most of the code to no more than 80 columns.

Raised some issues about completeness/correctness of trying to
decrement the max-window-ID (apparently in order to partially
recycle some window IDs to slightly slow the rate of growth of
window IDs).  (I didn't change what the code does, though.)

The functionality of the code should be unchanged.

git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@270 7f0cb862-5218-0410-a997-914c9d46530a