[dev] DataThree::getAttributes() second parameter

[Chuck Hagenbuch]

Quoting Duck <duck at obala.net>:

> Adds second parameter to DataThree::getAttributes() which defines the
> attribute keys we would like to retrieve. So we are not forced to retrieve
> all (possibly a lot of) object data/attributes, if we would like to get only
> a portion of them.

Committed, thanks.

-chuck

-- 
"But she goes not abroad in search of monsters to destroy." - John 
Quincy Adams