continual script stuff, minor stuff..
fix for bad return in group.
Added back group.objects.append/remove but print deprectaed warning. also some epydoc changes.
bvh2arm was for importing empties in a BVH, direct bvh armature import should be good for next release. and Iv removed the Old bvh importer anyway.
Will add a slot in the imaeg meny for image scripts, renamed scripts to go there.