attributes 0 1 2 ...  even though they aren't stored that way.

Use warp_invalidate() when conditions change.

Works but no -ref yet.

Add new SUBSTITUTE warp-type ("-subst field0"), which maps
three successive fields -> XYZ position (time-independent).

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

(1 = scale, 6 = virdir tx ty tz rx ry rz, 7 = same plus scale, 9 = 3x3.)

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

dvmmul -- don't use entry [3] of a 3-component point!

for performance etc. tests.

And, in partiview version, make sure to *use* o2d/d2o if provided!

Now, the only #ifdef KIRA/WARP needed in partibrains.c are
the data-command initialization routines.  All others,
including control-command parsing and specialized drawing,
is now via a function table.

Don't try to allocate in local memory -- use shmem after all.

we're not using them yet.

So if we're off the end, or if a null warp is in effect,
don't mess with it.

differential rotation function.  See "warp" command in partibrains.c.