[Success!] [MERGE] Implement VirtualVersionedFiles.iter_lines_added_or_present_in_keys.

[Bundle Buggy]

This change has been merged.
Previous status: Approved

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C1232615645.18436.9.camel%40ganieda.vernstok.nl%3E
Project: Bazaar