integrate dandelion config for Servlet 2 compatibility
integrate dandelion config for Servlet 2 compatibility

thymol/thymol.thymeleafexamples-petclinic,joshuawilson/spring-petclinic,joshuawilson/spring-petclinic,thymol/thymol.thymeleafexamples-petclinic,thymol/thymol.thymeleafexamples-petclinic,pkudevops/spring-petclinic-changed,pkudevops/spring-petclinic-changed,thymol/thymol.thymeleafexamples-petclinic,junlapong/thymeleafexamples-petclinic,thymeleaf/thymeleafexamples-petclinic,junlapong/thymeleafexamples-petclinic,thymeleaf/thymeleafexamples-petclinic