Merged revisions 1559989 via svnmerge from 
https://svn.apache.org/repos/asf/cxf/branches/2.7.x-fixes

CXF-5505 SpringBus should shutdown the bus when the application context is closed 


git-svn-id: https://svn.apache.org/repos/asf/cxf/branches/2.6.x-fixes@1559994 13f79535-47bb-0310-9956-ffa450edef68