(MVert,MFace,etc) off into DNA_meshdata_types.h, to isolate areas
of source that actually edit mesh *data* vs. areas that just edit
mesh object information.
when an object has an Ipo, the timing for each duplicated Object is
corrected for the lifetime of particle. Looks great!
Remark: this won't work for object location (is at particle) or for
particle type 'Vect' which gives a rotation already. But now you can
scale an object small, and let it grow over time.
