IN PROGRESS - issue SPR-5599: Hook @Configuration class processing into <context:component-scan/> and <context:annotation-config/> through AnnotationConfigUtils#registerAnnotationConfigProcessors 

Re-adding ConfigurationPostProcessorTests after its brief removal in r814. @Ignore-ing the testCglibClassesAreLoadedJustInTimeForEnhancement() method as it turns out this was one of the culprits in the recent build breakage. The classloader hacking causes subtle downstream effects, breaking unrelated tests. The test method is still useful, but should only be run on a manual basis to ensure CGLIB is not prematurely classloaded, and should not be run as part of the automated build.

+ reverted ClassMetadataReadingVisitor to revision 794
+ eliminated ConfigurationPostProcessorTests until further investigation determines why it causes downstream tests to fail (such as the seemingly unrelated ClassPathXmlApplicationContextTests)

fixed EL evaluation of prepared constructor arguments for repeated prototype creation

Add support for @ScopedProxy for factory beans using the @FactoryBean annotation within a @Component
Add missing unit tests

SimpleAliasRegistry's "getAliases" method returns transitive aliases now; @Qualifier value matching takes chained aliases of target beans into account as well

SmartApplicationListener interface supports source type checking; SimpleApplicationEventMulticaster caches information about event/source matches

registered plain singletons will be fully matched according to their qualifiers; "systemProperties" bean is not considered a default match for type Properties anymore (SPR-5355)

ApplicationListener beans get obtained on demand, supporting non-singletons as well; ApplicationListeners will be called in the order according to the Ordered contract; generified ApplicationListener interface

added "Future submit(Runnable)" and "Future submit(Callable)" to AsyncTaskExecutor; SchedulingTaskExecutor interface extends AsyncTaskExecutor; added ExecutorServiceAdapter class as a standard wrapper for a Spring TaskExecutor; added ThreadPoolExecutorFactoryBean; reduced backport-concurrent support to TaskExecutor adapters

refactored .context module's .beans.factory and .context.access tests in preparation for moving .beans.factory.xml tests from .testsuite -> .context

in the process, identified and refactored two genuine integration tests (AopNamespaceHandlerScopeIntegrationTests, AdvisorAutoProxyCreatorIntegrationTests), which will remain in .testsuite due to broad-ranging dependencies

+ updated all ivy.xml files to depend on AspectJ 1.6.2

Whitespace polishing: leading spaces->tabs; updated eclipse configuration to default to leading tabs for all bundles

moving .jndi, .mail and .mock.web unit tests from .testsuite to .context, .context.support, and .test bundles respectively

moved ContextSingletonBeanFactoryLocatorTests -> .context
pulled SingletonBeanFactoryLocatorTests and friends into .context via externals for use by the above