I was careful in selectively rolling back revisions, but if you've committed changes unrelated to BPY mixed with BPY changes, I might have reverted those too, so please double check.
Added to existing scn.objects
scn.objects.active (get/set the active object for the scene)
scn.objects.selected - an iterator that only uses selected objects
scn.objects.context - an iterator on objects in the user context (visible in the current 3d views layer and selected)
These are the same type as scn.objects but .add() .remove() .new() .active etc raise errors. so scn.objects.selected.add() will raise an error.
Made nested loops possible with scn.objects, metaball.elements and ob.modifiers, by initializing the iter value as NULL and creating copys of the pyobject when _getIter() is called if ->iter is not NULL.
This is how pythons xrange() works.
Moved .up() and .down() methods from Modifier API to Modifier sequence
API (also renamed them to moveUp() and moveDown() ). Locating methods
which modify the "parent" structure in objects didn't seem consistent.
More Modifier API changes:
* add Blender.Modifier.Settings dict with constants for modifier types
* add mod.type attribute, which returns type of the Modifier
* add some internal consistency checks in ModSeq_remove
