SPR-7732, SPR-6506, SPR-7191 MVC Namespace improvements to the annotation-driven element - custom message converters, formatters, and message codes resolver.

SPR-7729 - MediaType incorrectly calls the toString() method instead of name() method causing RestTemplate on Android to fail

Designed primarily for use in conjunction with web applications
to provide a convenient mechanism for configuring the container
programmatically.

ApplicationContextInitializer implementations are specified through the
new "contextInitializerClasses" servlet context parameter, then detected
and invoked by ContextLoader in its customizeContext() method.

In any case, the semantics of ApplicationContextInitializer's
initialize(ConfigurableApplicationContext) method require that
invocation occur *prior* to refreshing the application context.

ACI implementations may also implement Ordered/PriorityOrdered and
ContextLoader will sort instances appropriately prior to invocation.

Specifically, this new support provides a straightforward way to
programmatically access the container's Environment for the purpose
of adding, removing or otherwise manipulating PropertySource objects.

See Javadoc for further details.

Also note that ApplicationContextInitializer semantics overlap to
some degree with Servlet 3.0's notion of ServletContainerInitializer
classes. As Spring 3.1 development progresses, we'll likely see
these two come together and further influence one another.

Favor convertValue(Object, TypeDescriptor) where possible and TypedValue(Object); check with Andy on Selection and Projection TypedValue usage

added forNestedType(MethodParameter) for resolution of nested parameter types for collection, array, and map parameter types