update pom
update yaml
update CrashController
update project
Merge branch 'master' of
https://github.com/jhcao23/spring-boot-petclinic-thymeleaf-mongodb.git

Conflicts:
	pom.xml
	src/main/java/org/springframework/samples/petclinic/web/CrashController.java
	src/main/resources/application.yml