passing the wrong seller reference in (bug 1035692)
Merge pull request #270 from andymckay/zippy-zamboni-fixin

passing the wrong seller reference in (bug 1035692)
 Set buyer on transaction for Bango (bug #1034305)

 - Set buyer foreign key on transaction creation signal
 - Update tests
Merge pull request #271 from JaredKerim-Mozilla/1034305

     Set buyer on transaction for Bango (bug #1034305)