Individual Search w/ contrib data

Currently (http://sandbox.trunk.civicrm.org/) when you try to export all contacts with their contribution data, contacts without contribution data are not exported.

1. Export all 109 records in the db
2. Select fields fname, lname, contrib amount, contrib date.
3. System returns ~10 records rather than 109 expected records. Only records that have a contribution associated with them.

System should return all 109 records with null contribution values as appropriate.