import_obj - comments, docstring additions, cleanup.
OBJ export: -renamed export_obj
faster edge exporting (use edges LOOSE flag rather then finding zero face user edges)
check for file before overwriting
use object iterators
- bake wire
- bake image
- bake vcol
- bake normals
Fitting all the options for these into 1 PupBlock was not good.
An example of 4 different baking made from these scripts
http://members.iinet.net.au/~cpbarton/temp.png