code: @Bean
  	FilterRegistrationBean wro4jFilterRegistration(ConfigurableWroFilter wroFilter, Wro4jProperties wro4jProperties) {
  		final FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(wroFilter);
  		filterRegistrationBean.addUrlPatterns(wro4jProperties.getFilterUrl() + "/*");
  		return filterRegistrationBean;
  	}
docs: Registeres the {@code wroFilter} through a Spring
  {@link FilterRegistrationBean}.
  
  @param wroFilter The configured {@code wroFilter}
  @param wro4jProperties Needed for the url pattern to which the filter
  should be registered
  
  @return The Spring {@code FilterRegistrationBean}