[MERGE] Support delta_closure=True with NetworkRecordStream to transmit deltas over the wire when full text extraction is required on the far end.

[Bundle Buggy]

Bundle Buggy has detected this merge request.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C1234854080.11037.18.camel%40lifeless-64%3E
Project: Bazaar