Update DB/Result/* with latest DBIx::Class::Schema::Loader

Version 0.07027 of DBIx::Class::Schema::Loader introduced some changes
to the way it generates schemas.

> PostgreSQL WARNING: the default for on_delete/on_update attributes for
> belongs_to relationships is now 'NO ACTION' not 'CASCADE! The default
> for is_deferrable is now 0 not 1.