Await TcpClient shutdown in STOMP broker relay
Add support for Jackson serialization views

Spring MVC now supports Jackon's serialization views for rendering
different subsets of the same POJO from different controller
methods (e.g. detailed page vs summary view).

Issue: SPR-7156
Properly evaluate @Conditional in case of multiple imports for same config class

Issue: SPR-11788
JmsResourceHolder checks for nested DataSource transactions as well (for Oracle AQ compatibility)

Issue: SPR-11791
Servlet/PortletResponse supported as a resolvable dependency now (in particular for web controllers)

This feature required support for response exposure on Servlet/PortletRequestAttributes, instead of just in the Servlet/PortletWebRequest subclasses.

Issue: SPR-11795