Changes include, but may not be limited to:
* Support for meshes with multiple materials/face images
* Mode modular design that more closely reflects Blender's
internal workings
* Position, scale, and orientations are now exclusively dealt
with in Transform nodes, making the math more unified and
way easier to understand.
* vertex colors either written when mesh has SHARED_COL
face property, or when mesh has vertex colors and
first material with VCOL_PAINT (a little crufty, but
maybe will try a better way later)
* Support for debugging output to the console by setting
the 'rt' button to 42 (for mild verbosity) or 43 (for more
verbosity)
* Potentially long lists like vertex coordinates, face indices,
etc. are now unindented (why potentially waste thousands of
tab characters?)
* All lines in the script are under 79 characters (as per the
python style guide).
A major revision will usually beget major bugs, so
please test, test, test to make sure I haven't broken your favorite
feature in this script! (I've done a number of tests loading
output into the Bitmanagement viewer and into 3DSMax.)
