Link to the ExpireRelationshipOnFKChange recipe for deletes
Link to the ExpireRelationshipOnFKChange recipe for deletes

The recipe now supports interception of delete() and a
corresponding update of related objects.

Change-Id: I2aa3bfdd477ceccff6cfb3e66ed73311705010c7

monetate/sqlalchemy,wujuguang/sqlalchemy,graingert/sqlalchemy,graingert/sqlalchemy,wujuguang/sqlalchemy,sqlalchemy/sqlalchemy,zzzeek/sqlalchemy,j5int/sqlalchemy,monetate/sqlalchemy,j5int/sqlalchemy