Grrr. My attempt to commit got aborted, and the commit message was lost.

Grrr.  My attempt to commit got aborted, and the commit message was lost.
Now I've lost track of what I said I'd done.  Something like:

 * Fixed some issues with multiple wheels.
 * Noted in comments some issues about other-than-3-real-buttons.
 * Fixed formatting to fit 80 columns.
 * Removed some BCPL/C++ style comments (//) that are not legal, and
   which, if memory servers, are not even strictly legal when disabled
   by preprocessor directives.  E.g.,

   #if 0
     not-syntactically-valid-C
   #endif

   ...is not legal.  Though most cpp's will discard the bracketed material
   completely before the main C compiler pass has a chance to analyze the
   syntax.  (MSVC++ and GCC both don't seem to mind the BCPL style comments
   in plain C, but let's keep the sources clean, eh?)
 * Fixed a problem that would have caused freeglut to report doubled
   wheel events under XFree86.

Not tested other than compiling.  Personally, I think that the interface
is inherently broken at this point unless you are willing to get user-
configuration.  (Which would then solve the complaint that Steve had
about computing the tick-size on behalf of applications.)  I.e., there
is NO WAY to know if we have the right buttons to start wheels at, or
if there are any buttons after the first wheel(s), etc.  We just have to
guess---and if we are wrong, we can get varying degrees of brokeness.

git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@267 7f0cb862-5218-0410-a997-914c9d46530a