Add cache control strategy

Author: dlmcpaul

src/main/resources/application.properties

@@ -7,6 +7,13 @@ server.servlet.context-path=/mymoney
 # Hold sessions indefinitely
 server.servlet.session.timeout=0
 server.servlet.session.tracking-modes = cookie
+# Serve css with version control
+spring.web.resources.chain.enabled=true
+spring.web.resources.chain.strategy.content.enabled=true
+spring.web.resources.chain.strategy.content.paths=/css/**
+spring.web.resources.cache.cachecontrol.max-age=1d
+spring.web.resources.cache.cachecontrol.cache-public=true
+spring.web.resources.cache.cachecontrol.must-revalidate=true
 
 # Actuator configuration
 management.endpoints.web.exposure.include=info,metrics,health,loggers,httpexchanges,scheduledtasks,integrationgraph