make sure fork settings are a map prior to assignment
Use @CompileStatic on FilterToHandlerAdaptor
fix for GRAILS-11514 - "grails run-app" running application silently quits after a while
update to latest cache and tomcat plugins
update plugin versions also in assemble.gradle
Merge branch '2.3.x' into 2.4.x

Conflicts:
	gradle/assemble.gradle
	grails-plugin-filters/src/main/groovy/org/codehaus/groovy/grails/plugins/web/filters/FilterToHandlerAdapter.groovy
	grails-plugin-filters/src/test/groovy/org/codehaus/groovy/grails/web/filters/FilterToHandlerAdapterTests.groovy
	grails-resources/src/grails/grails-app/conf/BuildConfig.groovy