GenericBeanDefinition's toString() takes parent definition into account

Issue: SPR-9671
Test for overriding singleton @Bean method with scoped proxy in configuration subclass

Issue: SPR-10744
Test for base package specified as config location

Issue: SPR-11647
AspectJExpressionPointcut defensively handles fallback expression parsing

Issue: SPR-9335
Revised @PropertySource parsing for consistent PropertySource naming, avoiding accidental overriding by name

Issue: SPR-11637
Polishing
Document STOMP-related ApplicationContext events

Issue: SPR-11672
Include more guidance about DispatcherServlet context

Also update <mvc:annotation-driven /> comment in XSD.

Issue: SPR-11703
Update RequestMapping javadoc typo.
Polish STOMP documentation