rearranged spel subpackages in order to avoid package dependency cycle; introduced SpelParserConfiguration object to replace bit flags

added special handling of String array values for required fields, e.g. for WebRequestDataBinder (SPR-6552)

+ improved JBoss LTW by using the proper class loader for loading reflection types

+ moved petclinic to spring-samples (https://src.springframework.org/svn/spring-samples/petclinic)

support @ManagedBean for name retrieval in AnnotationBeanNameGenerator as well; support @ManagedBean and @Named for direct use only

removed getBeansWithAnnotation(Class,boolean,boolean) method from ListableBeanFactory; reimplemented getBeansWithAnnotation(Class) to avoid use of getBeanNamesForType(Object.class)

removed getBeansWithAnnotation(Class,boolean,boolean) method from ListableBeanFactory; reimplemented getBeansWithAnnotation(Class) to avoid use of getBeanNamesForType(Object.class)

bean properties of type enum array/collection can be populated with comma-separated String (SPR-6547)

SPR-6541: move spring repository placeholder into a profile (build) and the other repositories into another profile (legacy-build)