when running appfuse:gen the manager files are not fully autowired.

- add @Autowired to the constructor like this:
    /**
     * @param contentDao
     * will be pushed to super
     */
    @Autowired
    public ContentManagerImpl(final ContentDao contentDao) {
        super(contentDao);
        this.contentDao = contentDao;
    }

- change @Repository to @Repository("contentDao")
@Repository("contentDao")
public class ContentDaoHibernate extends GenericDaoHibernate<content, Long> implements ContentDao {