small additions/changes to make os x and windows buildable and functional. open issues on windows time motion widgets and terminating cleanly.

MacOS X port, "home" command/button, lots of bug fixes -- into main branch!

Initialize 3 lights instead of 2.
Fix "partiview -c 'detach hide'".  It was being interpreted as "detach fullscreen"!

this enables multisampling if FLTK and the hardware support it.

Where appropriate, update references to geomview license too,
now called COPYING.geomview.

They're concatenated.  E.g. "detach fullscreen +20+20"
sets position of control window.

Make "winsize" behave sensibly for already-detached windows
(i.e. don't just leave a small subwindow in a full-screen blank field).

Once we pick a license this might change, but
in the mean time, at least the NCSA UIUC origin is noted.

Allow more subcams.

rdata/readpath command uses originating filename for path search.

Add draw-tracing hook.
Fix typo in un-ifdef'd code.

simply enable lighting and use it later, currently in specks_draw_mesh().

"inertia on/off" and "detach [fullscreen]" commands.

in detached mode.

and into partiview.cc, using new parti_add_commands hook.

of command/history box.  Needs to be set before they're created,
apparently -- ctrl-K trick doesn't work so well.

pp_stepper needs to update all windows, not just gview.
H-R diagram toggles...

Add new -c "command string" cmd-line option.
Use findfile() to find ~/.partiviewrc and ./.partiviewrc.
Let command-line "-geometry" override initial "winsize".

Both are in .cf (i.e. data-command) form.
Make winsize command work even if we haven't created the window yet --
just save requested size and set it later.

If creating, and object name not of g<N> form, then make an alias too.

so "run" command can do it too.