[Bf-python] More Proposed API changes.

[Joe Eagar]

Campbell Barton wrote:
> Agree that "blend" a little false since it imply's the data is in the 
> current .blend file,
>
> However its the best of a bad lot ;)
> the data is still IN the blend file, just as a reference.
>
> Blender does add library data into its local pool of data so I think 
> its important we match this in the python API.
>
> using the iterators for linking data could be realy nice!
>
>    blend.groups.link("groupName", "//mylib.blend")
> and
>   blend.groups.append("groupName", "//mylib.blend")
>
Could blend have only data that lives in the actual open file?

For library data, we could have libblends, linkedblends, library, or 
something like that that provides the same iterator functions.

Joe